The temperatures in the upper 2,000 meters of the ocean hit a record high in 2020, according to a new analysis by a research team that included scientists from the National Center for Atmospheric Research (NCAR). The five hottest years for the upper ocean on record have all occurred since 2015.
The results of the new analysis, published in the journal Advances in Atmospheric Science, further illustrate how Earth is warming — just over 90 percent of the additional heat due to human-caused climate change is absorbed by the ocean. Ocean heat is a valuable indicator of climate change because it does not fluctuate as much as temperatures at the Earth’s surface, which can vary in response to weather and natural climate variations such as El Niño. Thus it more clearly reveals the gradual accumulation of heat due to human activities.
The increase in ocean temperatures can cause a number of societal impacts. Warmer ocean surface waters can, for example, supercharge hurricanes and other storms that travel over the sea. Warmer water also expands to take up more room, driving sea level rise and causing coastal flooding.
The uneven vertical heating of the ocean — the surface warms more quickly than the deeper ocean layers — also causes the ocean to become more stratified. This stratification inhibits ocean mixing and the distribution of dissolved oxygen and nutrients, which impacts marine ecosystems and fisheries.
“The warming of the ocean has real consequences,” said NCAR scientist Kevin Trenberth, a co-author of the study. “Ocean heat has exacerbated many of the most significant climate-related events in recent history, and contributed to the record number of billion-dollar disasters in the United States in 2020.”
The new research was led by Lijing Cheng, of the Chinese Academy of Sciences. The NCAR contributors are Trenberth and John Fasullo.
The research was supported by the National Science Foundation, which is NCAR’s sponsor, as well as by the National Key R&D Program of China, the Chinese Academy of Sciences, NASA, and the U.S. Department of Energy.
Ocean heat is challenging to analyze because direct measurements of the ocean’s temperature and other attributes can be few and far between. Scientists depend on models to help fill in the gaps between these measurements. However, a network of ocean floats deployed in the last couple of decades that move throughout the top 2,000 meters of the open ocean has provided researchers with valuable data for better understanding past measurements and calibrating their models.
For this analysis, the scientists used two different ocean heat datasets, one from the Institute of Atmospheric Physics, which is part of the Chinese Academy of Sciences, and one from the National Centers for Environmental Information, which is part of the U.S. National Oceanic and Atmospheric Administration.
While the two datasets yielded slightly different values for the globally integrated ocean heat in 2020, they both found that 2020 was the warmest year on record. The results also agree with results from independent research teams using slightly different methods and from independent data, such as satellite measurements of global sea level.
“Despite the challenges of measuring the entire ocean’s temperature, we can now say definitively that the ocean is warming and has been for decades,” Fasullo said. “In fact, each decade back to the 1970s has been discernibly warmer than the decade before, revealing an accumulation of heat that can only be explained by human activities.”
The United Nations Environment Program took a lot st how well the world’s nations are planning and acting to meet the ongoing and worsening global crisis.
Their verdict: We’re doing much too little.
One interesting feature of their report is an analysis of programs that work with nature, illustrated in this graphic from the document, linking climate crises and nature-based mitigations:
Here’s a briefing on the report from the United Nations Environment Program:
Step up climate change adaptation or face serious human and economic damage – UN report
As temperatures rise and climate change impacts intensify, nations must urgently step up action to adapt to the new climate reality or face serious costs, damages and losses, a new UN Environment Programme (UNEP) report finds.
Adaptation – reducing countries’ and communities’ vulnerability to climate change by increasing their ability to absorb impacts – is a key pillar of the Paris Agreement on Climate Change. The agreement requires its signatories to implement adaptation measures through national plans, climate information systems, early warning, protective measures and investments in a green future.
The UNEP Adaptation Gap Report 2020 finds that while nations have advanced in planning, huge gaps remain in finance for developing countries and bringing adaptation projects to the stage where they bring real protection against climate impacts such as droughts, floods and sea-level rise.
Public and private finance for adaptation must be stepped up urgently, along with faster implementation. Nature-based solutions – locally appropriate actions that address societal challenges, such as climate change, and provide human well-being and biodiversity benefits by protecting, sustainably managing and restoring natural or modified ecosystems – must also become a priority.
“The hard truth is that climate change is upon us,” said Inger Andersen, Executive Director of UNEP. “Its impacts will intensify and hit vulnerable countries and communities the hardest – even if we meet the Paris Agreement goals of holding global warming this century to well below 2°C and pursuing 1.5°C.”
“As the UN Secretary-General has said, we need a global commitment to put half of all global climate finance towards adaptation in the next year,” she added. “This will allow a huge step up in adaptation – in everything from early warning systems to resilient water resources to nature-based solutions.”
Adaptation planning is growing, but funding and follow-up lagging
The most encouraging finding of the report is that 72 per cent of countries have adopted at least one national-level adaptation planning instrument. Most developing countries are preparing National Adaptation Plans. However, the finance needed to implement these plans is not growing fast enough.
The pace of adaptation financing is indeed rising, but it continues to be outpaced by rapidly increasing adaptation costs. Annual adaptation costs in developing countries are estimated at USD 70 billion. This figure is expected to reach USD 140-300 billion in 2030 and USD 280-500 billion in 2050.
There are some encouraging developments. The Green Climate Fund (GCF) has allocated 40 per cent of its total portfolio to adaptation and is increasingly crowding-in private sector investment. Another important development is increasing momentum to ensure a sustainable financial system. However, increased public and private adaptation finance is needed. New tools such as sustainability investment criteria, climate-related disclosure principles and mainstreaming of climate risks into investment decisions can stimulate investments in climate resilience.
Implementation of adaptation actions is also growing. Since 2006, close to 400 adaptation projects financed by multilateral funds serving the Paris Agreement have taken place in developing countries. While earlier projects rarely exceeded USD 10 million, 21 new projects since 2017 reached a value of over USD 25 million. However, of over 1,700 adaptation initiatives surveyed, only 3 per cent had already reported real reductions to climate risks posed to the communities where the projects were being implemented.
Nature-based solutions for adaptation can make a huge contribution
The report places a special focus on nature-based solutions as low-cost options that reduce climate risks, restore and protect biodiversity and bring benefits for communities and economies.
An analysis of four major climate and development funds – the Global Environment Facility, the Green Climate Fund, the Adaptation Fund and the International Climate Initiative – suggested that support for green initiatives with some element of nature-based solutions has risen over the last two decades. Cumulative investment for climate change mitigation and adaptation projects under the four funds stood at USD 94 billion. However, only USD 12 billion was spent on nature-based solutions – a tiny fraction of total adaptation and conservation finance.
Stepping up action
According to the report, cutting greenhouse gas emissions will reduce the impacts and costs associated with climate change. Achieving the 2°C target of the Paris Agreement could limit losses in annual growth to up to 1.6 per cent, compared to 2.2 per cent for the 3°C trajectory.
All nations must pursue the efforts outlined in UNEP’s Emissions Gap Report 2020, which called for a green pandemic recovery and updated Nationally Determined Contributions that include new net-zero commitments. However, the world must also plan for, finance and implement climate change adaptation to support those nations least responsible for climate change but most at risk.
While the COVID-19 pandemic is expected to hit the ability of countries to adapt to climate change, investing in adaptation is a sound economic decision.
Twenty-six-year-old Kyle Burgess was on a 10-mile run on Saturday up Slate Canyon in Provo, Utah. He told the Deseret News that when he saw four cougar cubs on the trail, he took out his phone and started filming.
But when Burgess saw the young animals’ mother come along, he knew he was in trouble. For the next six minutes, he recorded their encounter.
The mother cougar followed him — hissing, growling and threatening — as Burgess backed away, keeping his eyes locked on her. Mostly, he alternated between yelling a stream of profanities at the mother mountain lion and calling the animal “dude.”
“Dude, you’re scary!” Burgess tells the animal at one point, adding: “You’re a (bleep) scary kitty cat.” A few minutes later, after she repeatedly lunges in Burgess’ direction, he says, “Come on, dude, I don’t feel like dying today.”
Amazingly, Burgess came away totally unharmed after he picked up a rock and hurled it at her. According to the Deseret News, a local official with Utah’s Division of Wildlife Resources, Scott Root, told Burgess: “You did awesome.” But, Root added, people should consider not running alone on trails.
Water is the most precious thing on earth, the life-sustaining fluid that most of us take for granted.
But as the earth warms and climates shifts, modst of planet will be suffering frrom reduced water supplies, one of the most worrying impacts of climate change.
Yadu Pokhrel, Associate Professor of Civil and Environmental Engineering at Michigan State University and Farshid Felfelani, an MSU Postdoctoral Research Associate, examine the data and its implications for a report in The Conversation, an academic journal written in conversational English:
Two-thirds of Earth’s land is on pace to lose water as the climate warms – that’s a problem for people, crops and forests
The world watched with a sense of dread in 2018 as Cape Town, South Africa, counted down the days until the city would run out of water. The region’s surface reservoirs were going dry amid its worst drought on record, and the public countdown was a plea for help.
By drastically cutting their water use, Cape Town residents and farmers were able to push back “Day Zero” until the rain came, but the close call showed just how precarious water security can be. California also faced severe water restrictions during its recent multiyear drought. And Mexico City is now facing water restrictions after a year with little rain.
There are growing concerns that many regions of the world will face water crises like these in the coming decades as rising temperatures exacerbate drought conditions.
Understanding the risks ahead requires looking at the entire landscape of terrestrial water storage – not just the rivers, but also the water stored in soils, groundwater, snowpack, forest canopies, wetlands, lakes and reservoirs.
We study changes in the terrestrial water cycle as engineersand hydrologists. In a new study published Jan. 11, we and a team of colleagues from universities and institutes around the world showed for the first time how climate change will likely affect water availability on land from all water storage sources over the course of this century.
We found that the sum of this terrestrial water storage is on pace to decline across two-thirds of the land on the planet. The worst impacts will be in areas of the Southern Hemisphere where water scarcity is already threatening food security and leading to human migration and conflict. Globally, one in 12 people could face extreme drought related to water storage every year by the end of this century, compared to an average of about one in 33 at the end of the 20th century.
These findings have implications for water availability, not only for human needs, but also for trees, plants and the sustainability of agriculture.
Where the risks are highest
The water that keeps land healthy, crops growing and human needs met comes from a variety of sources. Mountain snow and rainfall feed streams that affect community water supplies. Soil water content directly affects plant growth. Groundwater resources are crucial for both drinking water supplies and crop productivity in irrigated regions.
While studies often focus just on river flow as an indicator of water availability and drought, our study instead provides a holistic picture of the changes in total water available on land. That allows us to capture nuances, such as the ability of forests to draw water from deep groundwater sources during years when the upper soil levels are drier.
The declines we found in land water storage are especially alarming in the Amazon River basin, Australia, southern Africa, the Mediterranean region and parts of the United States. In these regions, precipitation is expected to decline sharply with climate change, and rising temperatures will increase evaporation. At the same time, some other regions will become wetter, a process already seen today.
Our findings for the Amazon basin add to the longstanding debate over the fate of the rainforest in a warmer world. Many studies using climate model projections have warned of widespread forest die-off in the future as less rainfall and warmer temperatures lead to higher heat and moisture stress combined with forest fires.
In an earlier study, we found that the deep-rooted rainforests may be more resilient to short-term drought than they appear because they can tap water stored in soils deeper in the ground that aren’t considered in typical climate model projections. However, our new findings, using multiple models, indicate that the declines in total water storage, including deep groundwater stores, may lead to more water shortages during dry seasons when trees need stored water the most and exacerbate future droughts. All weaken the resilience of the rainforests.
A new way of looking at drought
Our study also provides a new perspective on future droughts.
There are different kinds of droughts. Meteorological droughts are caused by lack of precipitation. Agricultural droughts are caused by lack of water in soils. Hydrological droughts involve lack of water in rivers and groundwater. We provided a new perspective on droughts by looking at the total water storage.
We found that moderate to severe droughts involving water storage would increase until the middle of the 21st century and then remain stable under future scenarios in which countries cut their emissions, but extreme to exceptional water storage droughts could continue to increase until the end of the century.
That would further threaten water availability in regions where water storage is projected to decline.
Changes driven by global warming
These declines in water storage and increases in future droughts are primarily driven by climate change, not land-water management activities such as irrigation and groundwater pumping. This became clear when we examined simulations of what the future would look like if climate conditions were unchanged from preindustrial times. Without the increase in greenhouse gas emissions, terrestrial water storage would remain generally stable in most regions.
If future increases in groundwater use for irrigation and other needs are also considered, the projected reduction in water storage and increase in drought could be even more severe.
Wildfire smoke accounted for up to half of all health-damaging small particle air pollution in the western U.S. in recent years as warming temperatures fueled more destructive blazes, according to a study released Monday.
Even as pollution emissions declined from other sources including vehicle exhaust and power plants, the amount from fires increased sharply, said researchers at Stanford University and the University of California, San Diego.
The findings underscore the growing public health threat posed by climate change as it contributes to catastrophic wildfires such as those that charred huge areas of California and the Pacific Northwest in 2020. Nationwide, wildfires were the source of up to 25% of small particle pollution in some years, the researchers said.
“From a climate perspective, wildfires should be the first things on our minds for many of us in the U.S.,” said Marshall Burke, an associate professor of earth system science at Stanford and lead author of the study.
The AP notes that particulates form the smoke have been linked to breathing problems and other ailments, as well as an increased rate of premature deaths, according to health experts.
More than a million tons of particulate pollution were recorded five of the last ten years.
From the report, published in the Proceedings of the National Academy of Science:
Over the past four decades, burned area from wildfires has roughly quadrupled in the United States. This rapid growth has been driven by a number of factors, including the accumulation of fuels due to a legacy of fire suppression over the last century and a more recent increase in fuel aridity, shown for the western United States), a trend which is expected to continue as the climate warms. These increases have happened parallel to a substantial rise in the number of houses in the wildland–urban interface (WUI). Using data on the universe of home locations across the United States and updated national land cover maps, we update earlier studies and estimate that there are now ∼49 million residential homes in the WUI, a number that has been increasing by roughly 350,000 houses per year over the last two decades. As firefighting effort focuses substantially on the protection of private homes, these factors have contributed to a steady rise in spending on wildfire suppression by the US government, which in recent years has totaled ∼$3 billion/y in federal expenditure. Total prescribed burn acreage has increased in the southeastern United States but has remained largely flat elsewhere, suggesting to many that there is underinvestment in this risk-mitigation strategy, given the massive overall growth in wildfire risk.
A graphic from the report sums up the rapid spread of wildfire pollution:
One in three large American rivers has changed color over the last 36 years, shifting from shades of blue to green and yellow, raising concerns about the health of U.S. waterways, according to an analysis of nearly 235,000 satellite images published in the journal Geophysical Research Letters.
The research examined satellite images covering 67,000 miles of large rivers (measuring more than 197-feet-wide) taken from 1984 to 2018 by NASA and the U.S. Geological Survey. It found that 56 percent of rivers appeared yellow instead of blue, and 38 percent appeared green. In one-third of the rivers examined, the color shift from blue to green or yellow was a long-term change, not tied to seasonal variation. Just 8 percent of the satellite images showed rivers as blue.
“Most of the rivers are changing gradually and not noticeable to the human eye,” lead author John Gardner, a postdoctoral researcher in the global hydrology lab at University of North Carolina, told Live Science. “But areas that are the fastest changing are more likely to be man-made.”
A yellow hue is likely due to a higher sediment load in the water, which can be caused by human activity, such as dredging or construction, or natural causes, such as heavy rainfall. Rivers appear green when there are large amounts of algae, often the result of fertilizer runoff from farms.
“If things are becoming more green, that’s a problem,” said study lead author John Gardner, a University of Pittsburgh geology and environmental sciences professor. Although some green tint to rivers can be normal, Gardener said, it often means large algae blooms that cause oxygen loss and can produce toxins.
The chief causes of color changes are farm fertilizer run-off, dams, efforts to fight soil erosion and man-made climate change, which increases water temperature and rain-related run-off, the study authors said.
“We change our rivers a lot. A lot of that has to do with human activity,” said study co-author Tamlin Pavelsky, a professor of global hydrology at the University of North Carolina.
Excess fertilizer runoff has been the cause of major outbreaks of toxic algae creating dead zones in the Gulf of Mexico, fed by runoff from U.S. farmlands feeding into the Mississippi River.
There were 22 separate billion-dollar weather and climate disasters across the United States, shattering the previous annual record of 16 events, which occurred in 2017 and 2011. The billion-dollar events of 2020 included a record 7 disasters linked to tropical cyclones, 13 to severe storms, 1 to drought, and 1 to wildfires. The 22 events cost the nation a combined $95 billion in damages.
Adding the 2020 events to the record that began in 1980, the U.S. has sustained 285 weather and climate disasters where the overall damage costs reached or exceeded $1 billion. (All cost estimates are adjusted based on the Consumer Price Index as of December 2020). The cumulative cost for these 285 events exceeds $1.875 trillion.
More generally, the U.S. experienced a record-breaking number of named tropical cyclones (30), eclipsing the record of 28 set in 2005, the year of Hurricane Katrina. Of these 30 storms, a record 12 made landfall in the United States. And 7 of the 12 became billion-dollar disasters—also a new record.
Not to be left out, many central states were impacted by a historically powerful derecho on August 10, which caused impacts comparable to an inland hurricane. 2020 also brought a record-breaking U.S. wildfire season, which burned more than 10.2 million acres. California more than doubled its previous annual record for area burned (last set in 2018) with over 4.1 million acres. In total, it is clear that 2020 (red line below) stands head and shoulders above all other years in regard to the number of billion-dollar disasters.
In broader context, the total cost of U.S. billion-dollar disasters over the last 5 years (2016-2020) exceeds $600 billion, with a 5-year annual cost average of $121.3 billion, both of which are new records. The U.S. billion-dollar disaster damage costs over the last 10-years (2011-2020) were also historically large: at least $890 billion from 135 separate billion-dollar events. Moreover, the losses over the most recent 15 years (2006-2020) are $1.036 trillion in damages from 173 separate billion-dollar disaster events.
Among the other items in their report, is this dramatic graph, revealing the ever-growing inflation-adjusted costs incurred from climate disasters over recent years, compared to historic averages:
Month-by-month accumulation of billion-dollar disasters for each year on record. The colored lines represent the top 5 years for most billion-dollar disasters prior to 2020. All other years are colored black. Before the end of August, 2020 (red line) had broken the previous annual record for billion-dollar disasters—16—set in 2011 (royal blue) and tied in 2017 (purple). NOAA image by NCEI.
Copernicus Climate Change Service, an intergovernmental service in the European union keep close track on leading indicators of the earth’s changing climate, and this year report offers a stark warning about the the years ahead.
The planet marked a near record overall, with Europe its hottest year ever.
The Copernicus Climate Change Service (C3S) today reveals that globally 2020 was tied with the previous warmest year 2016, making it the sixth in a series of exceptionally warm years starting in 2015, and 2011-2020 the warmest decade recorded. Meanwhile, Europe saw its warmest year on record, 0.4°C warmer than 2019 which was previously the warmest year. Together with the Copernicus Atmosphere Monitoring Service (CAMS), C3S also reports that CO2 concentrations in the atmosphere have continued to rise at a rate of approximately 2.3 ppm/year in 2020 reaching a maximum of 413 ppm during May 2020. Both C3S and CAMS are implemented by the European Centre for Medium-Range Weather Forecasts on behalf of the European Commission with funding by the European Union.
C3S’s dataset for surface air temperatures shows that:
Globally, 2020 was on a par with the 2016 record
2020 was 0.6°C warmer than the standard 1981-2010 reference period and around 1.25°C above the 1850-1900 pre-industrial period
This makes the last six years the warmest six on record
Europe saw its warmest year on record at 1.6°C above the 1981-2010 reference period, and 0.4°C above 2019, the previous warmest year
The largest annual temperature deviation from the 1981-2010 average was concentrated over the Arctic and northern Siberia, reaching to over 6°C above average
Furthermore, satellite measurements of global atmospheric CO2 concentrations show that:
CO2 global column-averaged maximum reached 413 ppm
CO2 continued to rise in 2020, increasing by 2.3 ± 0.4 ppm,slightly less than the growth rate of the previous year
Parts of the Arctic and northern Siberia saw some of the largest annual temperature deviations from average in 2020, with a large region seeing deviations of as much as 3°C and in some locations even over 6°C for the year as a whole. On a monthly basis, the largest positive temperature anomalies for the region repeatedly reached more than 8°C. Western Siberia experienced an exceptionally warm winter and spring, a pattern also seen over summer and autumn in the Siberian Arctic and over much of the Arctic Ocean.
Furthermore, the wildfire season was unusually active in this region, with fires first detected in May, continuing throughout summer and well into autumn. As a result, poleward of the Arctic Circle, fires released a record amount of 244 megatonnes of carbon dioxide in 2020, over a third more than the 2019 record. During the second half of the year, Arctic sea ice was significantly lower than average for the time of the year with July and October seeing the lowest sea ice extent on record for the respective month.
In general, the Northern Hemisphere experienced above average temperatures for the year, apart from a region over the central North Atlantic. In contrast, parts of the Southern Hemisphere saw below average temperatures, most notably over the eastern equatorial Pacific, associated with the cooler La Niña conditions developing during the second half of the year. It is notable that 2020 matches the 2016 record despite a cooling La Niña, whereas 2016 was a record year that began with a strong warming El Niño event.
Europe 2020: warmest year on record
2020 was Europe’s warmest year recorded, and seasonally winter 2019/20 and autumn 2020 were also the warmest recorded. Winter 2020, meaning December 2019 to February 2020, exceeded the previous warmest of 2016 by almost 1.4°C, while autumn (September to November 2020) passed the old record set in 2006 by 0.4°C. In addition, western Europe experienced a significant heatwave in late July and early August. The next four warmest years for Europe also happened during the last decade.
A full and detailed analysis of Europe’s climate will be released in April when Copernicus presents its annual European State of the Climate 2020.
Carlo Buontempo, Director of the Copernicus Climate Change Service (C3S), comments: “2020 stands out for its exceptional warmth in the Arctic and a record number of tropical storms in the North Atlantic. It is no surprise that the last decade was the warmest on record, and is yet another reminder of the urgency of ambitious emissions reductions to prevent adverse climate impacts in the future.”
CO2 concentrations continue to rise in 2020
Analysis of satellite data reveals that carbon dioxide concentrations have continued to rise in 2020 reaching an unprecedented global column-averaged maximum of approximately 413.1 ppm. The estimated annual mean XCO2 growth rate for 2020 was 2.3 ± 0.4 ppm/year. This is less than the growth rate in 2019, which was 2.5 ± 0.2 ppm/year and also less than the 2.9 ppm/year increase in 2015 and 2016. However, 2015 and 2016 experienced a strong El Niño climate event, which resulted in a larger atmospheric growth rate due to a weaker than normal uptake of atmospheric CO2 by land vegetation and large CO2 wildfire emissions, particularly in Indonesia in those years. The wildfires in the Arctic and Australia in 2020, although of unprecedented magnitude in their regions, represent only a small fraction of global fire emissions.
Vincent-Henri Peuch, Director of the Copernicus Atmosphere Monitoring Service (CAMS), comments: “While carbon dioxide concentrations have risen slightly less in 2020 than in 2019, this is no cause for complacency. Until the net global emissions reduce to zero, CO2 will continue to accumulate in the atmosphere and drive further climate change.”
In the context of the COVID-19 pandemic, it has been estimated by the Global Carbon Project that there was a reduction of around 7% of fossil CO2 emissions.
“To what extent this was a factor in the lower total increase is debatable though, as the variations in global growth rate are dominated by natural processes. We must continue efforts to decrease CO2 net emissions to reduce the risk of climate-related change”, Vincent-Henri Peuch adds.
“The extraordinary climate events of 2020 and the data from the Copernicus Climate Change Service show us that we have no time to lose. We must come together as a global community, to ensure a just transition to a net zero future. It will be difficult, but the cost of inaction is too great, which is why the commitments made under our European Green Deal are so very necessary”, highlights Matthias Petschke, Director for Space, European Commission’s Directorate-General for Defence industry and Space.
For anyone doubting the reality of global warming, consider this: The populations of native lifeforms of the once Temperate Eastern Mediterranean Sea have collapsed, replaced by species previously native only to tropical waters.
Native biodiversity collapse in the Eastern Mediterranean
An international team led by Paolo G. Albano from the Department of Palaeontology at the University of Vienna quantified a dramatic biodiversity collapse of up to 95 per cent of native species in the Eastern Mediterranean. The study is published in the Proceedings of the Royal Society B: Biological Sciences.
The coastline of Israel is one of the warmest areas in the Mediterranean Sea. Here, most marine species have been at the limits of their tolerance to high temperatures for a long time – and now they are already beyond those limits. Global warming has led to an increase in sea temperatures beyond those temperatures that Mediterranean species can sustain. Consequently, many of them are going locally extinct.
Paolo Albano’s team quantified this local extinction for marine molluscs, an invertebrate group encompassing snails, clams and mussels. They thoroughly surveyed the Israeli coastline and reconstructed the historical species diversity using the accumulations of empty shells on the sea bottom.
Biodiversity loss in the last few decades
The shallow habitats at scuba diving depths are affected most. Here, the researchers were not able to find living individuals of up to 95 per cent of the species whose shells were found in the sediments. The study suggests that most of this loss has occurred recently, presumably in just the last few decades.
Additionally, most of the species still found alive cannot grow enough to reproduce, “a clear sign that the biodiversity collapse will further continue,” says Albano. In contrast, the tropical species that enter from the Suez Canal thrive. The warm waters in the Eastern Mediterranean are very suitable habitats for them. Indeed, they occur in large populations and their individuals are fully fit to reproduce.
“For anyone accustomed to snorkel or dive in the Mediterranean,” explains the researcher, “the underwater scenario in Israel is unrecognisable: The most common species are missing, while in contrast tropical species are everywhere”.
The future perspectives for the Mediterranean are not good. The sea will continue to warm even if we would stop carbon dioxide emissions today. This is due to the inertia of the system, the long braking distance, so to speak.
It is thus likely that the biodiversity collapse will continue to spread. It may already be occurring in other eastern Mediterranean areas not surveyed yet, and it will expand to the West and intensify. Only intertidal organisms, which are to some extent pre-adapted to temperature extremes, and habitats in deeper water, where the temperature is markedly lower, will continue to persist – at least for some time.
“But the future is dim unless we immediately act to reduce our carbon emissions and to protect marine habitats from other pressures which contribute to biodiversity loss,” says Paolo Albano, “The changes that already occurred in the warmest areas of the Mediterranean may not be reversible, but we would be able to save large parts of the rest of the basin.”
Methodologically, the study was also interesting due to its interdisciplinary character: “These results came from the cooperation of scientists with very different backgrounds,” says Martin Zuschin, Head of the Department of Palaeontology and co-author of the study – “In particular, the cooperation between ecologists and palaeontologists is providing unique new views on how humankind is impacting biodiversity”.
Carmakers have revealed they have no conscience, ramping up production of vehicles, knowing that Donald Trump would do nothing to stop them as their products spew elevated emissions into the atmosphere, increasing the pace of global warming in a world their own grandchildren will inherit.
A new government report says gas mileage for new vehicles dropped and pollution increased in model year 2019 for the first time in five years.
The mileage increase comes as Americans continue to buy SUVs and trucks, and shift away from more efficient vehicles.
The Environmental Protection Agency says the changes show that few automakers could meet strict emissions and mileage standards set by the Obama administration.
But environmental groups contend that automakers used loopholes and stopped marketing fuel-efficient vehicles knowing that the Trump administration would roll back mileage and pollution standards.
The EPA report released Wednesday says gas mileage fell 0.2 miles per gallon, while greenhouse gas emissions rose by 3 grams per mile traveled, compared with 2018 figures. Mileage fell and pollution increased for the first time since 2014.
Bolivia’s Tuni glacier is disappearing faster than initially anticipated, according to scientists in the Andean nation, a predicament that will likely make worse water shortages already plaguing the capital La Paz, just 60 km away.
Scientists from the Universidad Mayor de San Andrés (UMSA), who monitor the Tuni and other regional glaciers, said the once sprawling glacier had been reduced to just one square kilometer.
Where once they had predicted it would last through 2025, now they say its disappearance is imminent.
“This entire sector was once covered with ice,” said Dr. Edson Ramírez, a university glaciologist. Across much of the glacier´s former path, now only discolored rock remains, exposed for the first time in centuries.
The Environmental Protection Agency released one of its last major rollbacks under the Trump administration on Tuesday, limiting what evidence it will consider about risks of pollutants in a way that opponents say could cripple future public health regulation.
EPA Administrator Andrew Wheeler said the new rule, which restricts what findings from public health studies the agency can consider in crafting health protections, was made in the name of transparency about government decision-making. “We’re going to take all this information and shine light on it,” Wheeler said Tuesday, in unveiling the terms of the new rule in a virtual appearance hosted by a conservative think tank.
“I don’t think we get enough credit as an administration about wanting to open up … to sunlight and scrutiny,” Wheeler said of the Trump administration, which has already rolled back dozens of public health and environmental protections.
Opponents say the latest rule would threaten patient confidentiality and privacy of individuals in public health studies, and call the requirement an overall ruse to handicap future regulation.
The kind of research findings that appear targeted in the new rule “present the most direct and persuasive evidence of pollution’s adverse health effects,” said Richard Revesz, an expert in pollution law at the New York University School of Law.
The stench becomes pervasive when you look at the origin’s of Trump’s policy change.
Nearly a quarter century ago, a team of tobacco industry consultants outlined a plan to create “explicit procedural hurdles” for the Environmental Protection Agency to clear before it could use science to address the health impacts of smoking.
President Trump’s E.P.A. has now embedded parts of that strategy into federal environmental policy. On Tuesday Andrew Wheeler, the administrator of the E.P.A., formally released a new regulation that favors certain kinds of scientific research over others in the drafting of public health rules.
“Right now we’re in the grips of a serious public health crisis due to a deadly respiratory virus, and there’s evidence showing that air pollution exposure increases the risk of worse outcomes,” said Dr. Mary Rice, a pulmonary and critical care physician who is chairwoman of the environmental health policy committee at the American Thoracic Society.
“We would want E.P.A. going forward to make decisions about air quality using all available evidence, not just putting arbitrary limits on what it will consider,” she said.
It’s not a good sign when your science rules come from a powerful industry that spent millions on election and propaganda designed to conceal the fact that they’d probably killed as many people as Hitler.
But it gets even worse, the Times notes:
The E.P.A. says the regulation only deals with future rules. Public health experts, however, warned that studies that have been used for decades to show, for example, that lead in paint dust is tied to behavioral disorders in children might be inadmissible when existing regulations come up for renewal.
Most significantly, they warned, a groundbreaking 1993 Harvard University project that definitively linked polluted air to premature deaths, currently the foundation of the nation’s air-quality laws, could become inadmissible as the agency considers whether to strengthen protections. In that study, scientists signed confidentiality agreements to track the private medical and occupational histories of more than 22,000 people in six cities. Its findings have long been attacked by the fossil fuel industry and some Republican lawmakers.
The Fish and Wildlife Service (FWS) has finalized a rule rolling back protections for migratory birds, according to a document that will be published in the Federal Register this week.
The new rule changes the implementation of the 1918 Migratory Bird Treaty Act (MBTA) so that companies are no longer penalized for accidentally or incidentally harming or killing these birds.
The MBTA has protected more than 1,000 different species of birds for more than 100 years by punishing companies whose projects cause them harm.
The Trump administration has argued, however, that companies should only be punished for intentionally killing the animals, though it has admitted that relaxing these rules may cause companies not to carry out best practices that limit incidental bird deaths.
By way of analogy, the the case of murder of a human being, the law differentiates between intentional homicide and negligent homicide, the latter being a death cause of by negligent actions not intended to lead to the death at issue.
But both are crimes; only the punishment differs.
And a fresh assault on Alaska’s wilderness
Finally, there’s a new front in his assault on the Alaskan National Wildlife Refuge, via the Guardian:
On Monday, the Trump administration also dramatically expanded the area where the government can lease public land for oil drilling to the west of ANWR.
The plan would allow drilling in 82% of the National Petroleum Reserve-Alaska, an area bigger than the state of West Virginia, according to environmental groups, though the Biden administration could reverse that decision more easily than it could hold off drilling in ANWR.
Native groups in Alaska have fought ANWR drilling proposals with lawsuits. For the Gwich’in, indigenous Alaskans who have migrated alongside the caribou and relied upon them as a food source, the fight is personal. They formed the Gwich’in Steering Committee in 1988 to oppose drilling in the coastal plain, which they call the Sacred Place Where Life Begins.
“We come from some of the strongest people that ever walked this earth. They survived some of the coldest, harshest winters so that we can be here,” Bernadette Demientieff, executive director of the committee, said during an AM radio segment last week. “I feel like this is my responsibility as a Gwich’in, to protect the caribou.”
Polar bear advocates say the habitat is also critical to a population in dire straits from development and rising temperatures that are melting sea ice. The Arctic is heating at a much faster pace than the rest of the world. Polar bear numbers in Alaska and western Canada declined 40% from 2001 to 2010, said Steven Amstrup, chief scientist for Polar Bears International.
Well sign off with a quote:
“I want the cleanest water on Earth, I want the cleanest air on Earth and that’s what we’re doing — and I’m an environmentalist.” — Donald J. Trump
They’re called gillnets, defined by the National Oceanic and Atmospheric Administration’s Fisheries department as “a wall of netting that hangs in the water column, typically made of monofilament or multifilament nylon.”
I first became aware of gillnets and their destructive impacts on threatened and endanger sea mammals back in the 1970s, when my paper, the late, great Santa Monica Evening Outlook teamed up with the Sacramento Bee to report extensively on corruption in the California fishing industry and the state’s lax enforcement policies.
Conservationists warned us that gillnet fishermen were catching dolphnis, sea turtles and even small whales, which died, trapped under water and unable to reach the surface to breathe.
That’s why we were alarmed at one of Donald Trump’s latest moves, as reported by the Associated Press:
President Donald Trump vetoed a bill Friday that would have gradually ended the use of large-mesh drift gillnets deployed exclusively in federal waters off the coast of California, saying such legislation would increase reliance on imported seafood and worsen a multibillion-dollar seafood trade deficit.
Trump also said in his veto message to the Senate that the legislation sponsored by Sens. Dianne Feinstein, D-Calif., and Shelley Moore Capito, R-W.Va., “will not achieve its purported conservation benefits.”
Feinstein issued a statement late Friday saying Trump’s veto “has ensured that more whales, dolphins, sea turtles and other marine species will be needlessly killed, even as we have a proven alternative available.”
Trump vetoed the fishing bill as the Republican-controlled Senate followed the Democratic-led House and voted to overturn his earlier veto of the annual defense policy bill, enacting it into law despite Trump’s objections.
The fishing bill’s sponsors said large-mesh drift gillnets, which measure between 1 mile (1.6 kilometers) and 1.5 miles (2.4 kilometers) long and can extend 200 feet (60.9 meters) below the surface of the ocean, are left in the waters overnight to catch swordfish and thresher sharks. But they said at least 60 other marine species — including whales, dolphins and sea lions — can also become entangled in the nets, where they are injured or die.
Trumps wilful ignorance belied by his own government
Had Trump wanted to learn about gillnets, he could have simply gone to his own government’s NOAA Fisheries gillnet page and learned this:
Depending on the gillnet mesh size, animals can become entangled around their necks, mouths, and flippers. Entanglement can prevent proper feeding, constrict growth, or cause infection after many months. Marine mammals entangled in set gillnets can drown while those entangled in drift gillnets can drag gear for miles as they migrate and forage, leading to extreme fatigue. Species most commonly caught in gillnets include:
Large whales: Humpback whales, Fin whales, Right whales
Dolphins: Bottlenose dolphins, Common dolphin, Right whale dolphins,
Steller sea lions
The report also cites the danger to sea turtles:
Gillnetting has been a major source of mortality for all sea turtle species.
Turtles encountering a gillnet can quickly become entangled around their head or flippers as they try to escape. Entangled turtles will drown if held under the water but have a higher chance of survival if they can reach the surface to breathe. The nylon can tighten around the turtle’s soft body parts and cause deep cuts potentially leading to infections, limited movement, or complete loss of the limb. Limited use of appendages can impair a turtle’s natural feeding, breathing, and swimming behavior.
Gillnets do an unbelievable amount of damage. Used to capture large amounts of fish, they kill not only targeted species, but any creature that swims into them. Critically endangered hammerhead sharks are particularly vulnerable to being caught as their unique T-shaped heads become easily entangled. Imagine if on land a single hunting trap was set in a forest and caught not just one animal, but hundreds—every rabbit, deer, squirrel, and song bird across acres. Similarly, gillnets empty the seas. Fishers use them because the payout seems big in the short-term, but in the long-term, they eviscerate fish stocks, devastate fishing livelihoods and marine ecosystems, and reduce populations of threatened marine wildlife like hammerheads.
And it’s not just mammals and amphibians at risk, as the American Bird Conservancy reported in 2016:
A new study published in the journal Biological Conservation provides the first global review of seabird mortality associated with the gillnet fishing industry and finds that, at a minimum, 400,000 seabirds are killed accidentally in gillnets each year, with numerous species suffering potentially significant impacts.
The study documents 81 species that have been caught and killed in gillnets and another 67 species that are potential victims. The list of susceptible species includes five Critically Endangered, 14 Endangered, 29 Vulnerable, and 15 Near Threatened species, as classified by the International Union for Conservation of Nature. The highest bycatch has been reported in the Pacific Northwest (about 194,000 individuals), Iceland (around 100,000), and the Baltic Sea (around 76,000). However, the report said that it is almost certain that that the actual number of birds killed in gillnets worldwide is much higher because of numerous data gaps.
According to the report, “…gillnets have been the cause of some of the highest recorded mortalities of seabirds worldwide. The status of seabird populations is deteriorating faster compared to other bird groups, and bycatch in fisheries is identified as one of the principle causes of declines.
Gillnets, in other words, are like using nukes to hunt deer.
Sea Shepherd is an international, non-profit marine conservation organization that engages in direct action campaigns to defend wildlife, and conserve and protect the world’s oceans from illegal exploitation and environmental destruction.
Sea Shepherd has been working hard to save the vaquita, a beautiful little dolphin brought to brink of destruction by gillnets in the Gulf of Mexico, By all estimates, few than 20 remain, possible even less than 10.
The nets are deployed to catch another critically endangered creature, a fish called the totoaba, valued in Asia as a cure for erectile dysfunction. The dead vaquitas trapped in their nets are merely what the American military likes to call collateral damage, like the hundreds of thousands on innocent Iraqis killed in the endless post-9/11 war in the Mideast.
In response to international pressure from Sea Shepherd and other activist organizations, Mexico banned gillnets in the vaquita habitat in the northern waters of the Gulf of Mexico on 29 June 2017, but that hasn’t stop the gillnetters.
This week marks the completion of a collaborative effort aimed at removing abandoned fishing gear from the habitat of the critically endangered vaquita.
The program, which is funded by the Government of Mexico, has been operating since 2016. Every year, a group of small-scale fishers from the community of San Felipe in the Upper Gulf of California undertakes seasonal ghost net removal operations in the Vaquita Refuge. Sea Shepherd provides support with the recovery of the nets located by the fishers, ensuring that they never find their way back into the marine ecosystem.
“Ghost nets” refer to abandoned fishing gear, nets that have been discarded or lost at sea. These inactive nets pose a deadly threat to all marine wildlife and can continue to kill marine animals indefinitely for as long as they remain in the ocean. Whales, turtles, dolphins, and vaquitas are all vulnerable to entanglement in these deserted nets.
A group of 35 local fishers, working from 17 small boats, systematically search the Vaquita Refuge in a grid pattern to locate discarded fishing gear. Following GPS coordinates, the boats drag modified hooks under the water to detect submerged nets. As the vessels move over the nets, the hooks become entangled in the fishing gear. Once a net is detected, the fishers mark the area, and Sea Shepherd’s Sharpie moves in to retrieve the gear.
This season, the operation successfully retrieved 20 nets from the Vaquita Refuge between Sept. 12 and Oct. 31, 2020.
“There are many more nets in the water than vaquitas,” said Andrea Bonilla, Sea Shepherd’s Ghost Net Project Coordinator.
Here’s a video report filed after the campaign’s conclusion:
Tensions Escalate in Vaquita Refuge
Tensions are escalating in the habitat of the world’s most endangered marine mammal as Sea Shepherd fights to save the vaquita from imminent extinction.
There are less than 20 vaquitas left alive. Entanglement in illegal gillnets is the primary threat to the survival of this critically endangered animal.
The work is hazardous, as this shooting incident recorded last * February reveals:
Shots fired at Sea Shepherd inside Vaquita Refuge
On February 8th, 2020, a group of four fishing skiffs chased and opened fire on Sea Shepherd vessel the M/V Sharpie.
Four years earlier, in February 2016, Sea Shepherd found a surprise, a massive Humpback whale trapped in a gillnet inside vaquita waters, proof of the danger the nets pose to large marine mammals:
Sea Shepherd Crew Save Humpback Whale Entangled in Illegal Gillnet
Sea Shepherd crew rescued a whale entangled in an illegal totoaba gillnet in the Gulf of California. Sea Shepherd currently has two vessels in Mexico’s Gulf of California on OPERATION MILAGRO. Our goal is to save the vaquita porpoises, the most endangered marine mammal. The vaquita are caught as a result of fishing the totoaba, a fish poached for its swim bladder. Both the vaquita and the totoaba are endangered species and protected by law. Both species live only in the Gulf of California.
Another video from further afield comes from Italy, where a whole pod of sperm wahales was entanled in a drifting net.
On 9 Aug 2004 a herd of female and young sperm whales, entangled in an illegal drifting for swordfish, is rescued by divers of the Italian Coast Guard. After two days of work, all whales are released alive. Video by the Coast Guard of Naples. Editing by Oceanomare Delphis Onlus.
To conclude, we turn to one of our previous vaquita posts, this one from 21 June 2016.
Marine biologist Barbara Taylor of the Southwest Fisheries Science Center in La Jolla is passionate about saving the world’s endangered cetaceans, and her focus in recent years has been on the Vaquita, a recently discovered porpoise in the Sea of Cortez now facing imminent extinction.
Taylor’s passion for saving the rare mammal extends beyond the laboratory and field research to the other passion of her life, art [she has her own gallery where you can purchase her graphics and jewellery featuring the Vaquita]. Here’s one example:
Net Loss: New Abundance Estimate Reveals That Mexico’s Vaquita Faces Imminent Extinction
Barbara Taylor of the National Marine Fisheries Service Southwest Fisheries Science Center, who participated in the last effort to save the recently extinct Chinese River Dolphin, or Baiji, gives a detailed chronicle of her involvement in documenting the decline of earth’s most endangered marine mammal, the Vaquita, found only in the Sea of Cortez, Mexico. Their primary threat is death in gillnets, which until very recently supplied shrimp to the U.S. market. The catastrophic 80% decline since 2011 results from illegal sales of endangered totoaba swim bladders to China. Recorded on 06/13/2016.
She started thinking seriously about climate change after a lesson in which a teacher showed a documentary about the island of plastic floating in the Pacific Ocean. Thunberg started to cry. Others in the class were distressed too but they moved on when the school bell rang. Thunberg could not. It has been pointed out that people with autism are overrepresented within the climate movement and I’m interested to know why she thinks this is. “Humans are social animals. We copy each other’s behaviour, so if no one else is acting as though there’s no crisis then it can’t be that bad. But we who have autism, for instance, we don’t follow social codes, we don’t copy each other’s behaviour, we have our own behaviour,” she says. “It’s like the tale of The Emperor’s New Clothes; the child who doesn’t care about his reputation or becoming unpopular or being ridiculed is the only one who dares to question this lie that everyone else just silently accepts.”
It is a different folk tale that springs to my mind as I talk to her; the Dutch boy with his finger in the dyke. She is not at all emotional when she discusses the environment; she reads, speaks to scientists regularly and is motivated by cold, hard facts. Fame was just a consequence of her conviction and is not something she enjoys. She gets stopped in the street everywhere she goes except at home in Sweden. It is a cultural phenomenon called Jantelagen, or Jante’s law, she has said: a term used by Scandinavians to describe their cultural inclination towards disapproval of individual achievement. “I know that people see me, I can see in their eyes that they recognise me, and sometimes they point, but they don’t stop and talk,” she says. “It’s nice because I’m being left alone, but it gets very socially awkward because I know they know and it becomes like a game they all pretend.”
She copes with it by spending most of her time at home with her family. Her younger sister, Beata, was diagnosed with ADHD, and the family is a tight-knit unit. Over the years there has been a lot of speculation about the influence her parents have over her profile and her campaigning, but it is very clear when you talk to her that Thunberg thinks for herself. Does it make her feel lonely? She shakes her head. “Of course it is hard to find someone who understands what my life is like, but that doesn’t mean I’m lonely because I have so many people supporting me,” she says. One of them is Malala Yousafzai, the Nobel prize-winning Pakistani girl who was shot in the head by the Taliban and became a global champion of education for girls. They met when they were filming a series for the BBC and have stayed close. Yousafzai, 23, has advised her to “take care of yourself, to remember that you are probably in it for the long run, so you shouldn’t take on too much”, Thunberg says.
She is decidedly laid-back about other people’s choices too. I ask what she makes of celebrities who talk about the environment while flying around the world. “I don’t care,” she says. “I’m not telling anyone else what to do, but there is a risk when you are vocal about these things and don’t practise as you preach, then you will become criticised for that and what you are saying won’t be taken seriously.” Nor does she agree that having children is bad for the planet. The whole issue is a distraction, she says, and one that scares people away. “I don’t think it’s selfish to have children. It is not the people who are the problem, it is our behaviour.”
Her own choices demonstrate what she believes is the right way to live. She stopped flying years ago — she famously sailed to America to speak at the 2019 UN climate summit, a voyage that took 15 days (footage shows her ashen-faced, disappearing out of shot with a bucket). She is a vegan and has stopped “consuming things”. What does that mean, I ask. Clothes? She nods. What if she needs something? “The worst-case scenario I guess I’ll buy second-hand, but I don’t need new clothes. I know people who have clothes, so I would ask them if I could borrow them or if they have something they don’t need any more,” she says. “I don’t need to fly to Thailand to be happy. I don’t need to buy clothes I don’t need, so I don’t see it as a sacrifice.”
From NASA’s Earth Observatory, a dramatic image captures the dramatic breakup of Greenland’s ice cap as the two-mile-thick frozen mantle melts and ice begins flowing into the sea. The added red regions note areas of movement, with the intensity of the reds reflecting the relative pace of glacial movement:
More from NASA:
A recent study of Greenland’s ice sheet found that glaciers are retreating in nearly every sector of the island, while also undergoing other physical changes. Some of those changes are causing the rerouting of freshwater rivers beneath the ice.
In a study led by Twila Moon of the National Snow and Ice Data Center, researchers took a detailed look at physical changes to 225 of Greenland’s ocean-terminating glaciers—narrow fingers of ice that flow from the ice sheet interior to the ocean. They found that none of those glaciers has substantially advanced since the year 2000, and 200 of them have retreated.
The map at the top of this page shows measurements of ice velocity across Greenland as measured by satellites. The data were compiled through the Inter-mission Time Series of Land Ice Velocity and Elevation project (ITS_LIVE), which brings together observations of glaciers collected by multiple Landsat satellites between 1985 and 2015 into a single dataset open to scientists and the public.
About 80 percent of Greenland is blanketed by an ice sheet, also known as a continental glacier, that reaches a thickness of up to 3 kilometers (2 miles). As glaciers flow toward the sea, they are usually replenished by new snowfall on the interior of the ice sheet that gets compacted into ice. Multiple studies have shown that the balance between glacier melting and replenishment is changing, as is the rate of iceberg calving. Due to rising air and ocean temperatures, the ice sheet is losing mass at an accelerating rate and additional meltwater is flowing into the sea.
“The coastal environment in Greenland is undergoing a major transformation,” said Alex Gardner, a snow and ice scientist at NASA’s Jet Propulsion Laboratory and co-author of the study. “We are already seeing new sections of the ocean and fjords opening up as the ice sheet retreats, and now we have evidence of changes to these freshwater flows. So losing ice is not just about changing sea level, it’s also about reshaping Greenland’s coastline and altering the coastal ecology.”
Though the findings by Moon, Gardner, and colleagues are in line with other Greenland observations, the new survey captures a trend that has not been apparent in previous work. As individual glaciers retreat, they are also changing in ways that are likely rerouting freshwater flows under the ice. For example, glaciers change in thickness not only as warmer air melts ice off of their surfaces, but also as their flow speed changes. Both scenarios can lead to changes in the distribution of pressure beneath the ice. This, in turn, can change the path of subglacial rivers, since water will always take the path of least resistance (lowest pressure).
Citing previous studies on the ecology of Greenland, the authors note that freshwater rivers under the ice sheet deliver nutrients to bays, deltas, and fjords around Greenland. In addition, the under-ice rivers enter the ocean where the ice and bedrock meet, which is often well below the ocean’s surface. The relatively buoyant freshwater rises, carrying nutrient-rich deep ocean water to the surface, where the nutrients can be consumed by phytoplankton. Research has shown that glacial meltwater rivers directly affect the productivity of phytoplankton, which serve as a foundation of the marine food chain. Combined with the opening of new fjords and sections of ocean as glaciers and ice shelves retreat, these changes amount to a transformation of the local environment.
“The speed of ice loss in Greenland is stunning,” said Moon. “As the ice sheet edge responds to rapid ice loss, the character and behavior of the system as a whole are changing, with the potential to influence ecosystems and people who depend on them.”
From Ilana Cohen, associate managing editor of the Harvard Political Review, writing at Inside Climate News:
In many ways, the United States’ struggle to control Covid-19 has painted a picture, part hopeful and part harrowing, of how the climate crisis might play out in the decades to come.
Many climate activists and progressives hoped—at least at initially—that the death and illness associated with a worldwide pandemic would make it easier for people to take distant climate threats more seriously.
It didn’t take all that much imagination. The parallels were everywhere.
As Bullard noted, the same communities were being disproportionately affected in each crisis.
And the same fine particle air pollution, known as PM 2.5, caused primarily by burning fossil fuels, was shown in an early Harvard study to be linked to higher Covid-19 deaths rates among people living in polluted areas.
Climate change is also responsible for the proliferation of zoonotic diseases, like Covid-19, as drought, flooding and extreme weather force food production to encroach on habitats populated by bats, monkeys and other virus-carrying wild animals.
But while Covid-19 has raised some people’s consciousness about the urgent need to act on climate change, it has had the opposite effect on others. At least in the United States, the president and much of his base have embraced the same science denialism that has for years greeted climate change, even as deaths from the coronavirus soared.
Whether or not the Covid-19 pandemic ultimately bolsters or hampers the prospects for U.S. and global climate action, the two crises remain inextricably linked. At least for the foreseeable future, any effort to meaningfully address the root causes of one will involve confronting the other.
Australia’s seemingly suicidal posture towards climate change often puzzles foreign observers. Indeed, the Australian state’s persistent reluctance to take meaningful action as the country wilts from the worst effects of climate change defies rational explanation. Noting that “Australia is already having to deal with some of the most extreme manifestations of climate change”, renowned British conservationist David Attenborough once described the Australian government’s disinterest in responding to the climate emergency as “extraordinary”.
Australia’s apparent indifference towards this global emergency is not so much a case of climate change denialism as it is exceptionalism. There are some climate change deniers on the far right who exercise an inordinate amount of political power relative to the size of their support base. However, more fundamentally, what guides the Australian state’s problematic stance on climate change is a form of exceptionalism.
Australia’s climate change exceptionalism rests on several pillars.
First, the conviction on the part of successive Australian governments that our national consumption patterns have no material effect on climate change and the resulting belief that we can extract ourselves from the global effort to combat it without this causing much harm.
Second, a purposeful downplaying of the contributions of Australian extractive industries to carbon supply chains, which paints the country as an incidental intermediary in the production of global emissions, encourages Australians to view climate change as somebody else’s problem. This, despite Australia now being the third-largest exporter of carbon dioxide in fossil fuels, behind Russia and Saudi Arabia.
These convenient fictions allow Australian governments to ignore the scientific consensus on climate change when politically and economically convenient and opt in an out of climate change mitigation and adaptation measures as they see fit.
The Washington Post today has an excellent report on how U.S. government scientists thwarted the President’s efforts to rewrite a critical report on climate change.
Here’s the intro:
The National Climate Assessment, America’s premier contribution to climate knowledge, stands out for many reasons: Hundreds of scientists across the federal government and academia join forces to compile the best insights available on climate change. The results, released just twice a decade or so, shape years of government decisions.
Now, as the clock runs down on President Trump’s time in office, the climate assessment has gained a new distinction: It is one of the few major U.S. climate initiatives that his administration tried, yet largely failed, to undermine.
In November, the administration removed the person responsible for the next edition of the report and replaced him with someone who has downplayed climate science, though at this point it seems to be too little, too late. But the efforts started back in 2018, when officials pushed out a top official and leaned on scientists to soften their conclusions — the scientists refused — and then later tried to bury the report, which didn’t work either.
“Thank God they didn’t know how to run a government,” said Thomas Armstrong, who during the Obama administration led the U.S. Global Change Research Program, which produces the assessment. “It could have been a lot worse.”
In almost every agency overseeing energy, the environment and health, Trump selected top officials who dispute the mainstream consensus on the urgency of climate action. People with little scientific background, or strong ties to industries they would be regulating, were appointed to scientific leadership positions. One of the administration’s first actions was to order scientists and other employees at EPA and other agencies to halt public communications. Several federal scientists working on climate change have said they were silenced, sidelined or demoted. At least three—a senior employee at the Department of Interior, one at the Centers for Disease Control and Prevention and another at the National Park Service—invoked whistleblower protections. Independent science advisors, such as members of the EPA’s Board of Scientific Counselors, have also been sidelined. Scientific content on government websites has been altered and the public’s access to data reduced. Climate data from the government’s open portal website was removed. So was the EPA’s climate change website. The words “climate change” have been purged from government reports, and other reports have been buried, including by officials at the Department of Agriculture. The administration even edited a major Defense Department report to downplay its climate findings. Through speeches and tweets, the president has repeatedly spread misinformation to the public through his climate denial and denigration of renewable energy.
EPA, meanwhile, is working to finalize its proposal to suppress the types of scientific evidence the agency can use in writing its rules. This includes prohibiting the use of well-established, long-term scientific studies underpinning the nation’s air pollution rules, a change the fossil fuel industry had sought for years. Known as the “secret science” rule, it has been lambasted by scientists and health experts worldwide. Related, the White House issued a memo offering new ways for fossil fuel and other industries to challenge science-based policies.
Trump’s focus, instead, was on corporate profits, and his ceaseless gutting of environmental rules came with a promise that his efforts would launch an economic book.
“Because global emissions in 2020 are so much higher than they were 10 or 20 or 30 years ago, that means that a year wasted in the Trump administration on not acting on climate has much bigger consequences than a year wasted in Ronald Reagan or George W. Bush or Bill Clinton’s administration,” said Michael Wara, a climate and energy expert at Stanford University.
Analysts say that the past four years represented a closing window in which the world’s largest polluting economies, working together, could have charted a path toward slowing the rate of planet-warming emissions. To do that, a scientific report in 2018 found that the world’s economies would need to reduce emissions 45 percent from 2010 levels by 2030 — and the policies to do so should be implemented rapidly.
Instead, in the largest economy in the world, they began to fray.
We leave the last word, or rather burn to out favorite Swede [and note the face of the guard, too]:
The Rainforest Alliance sounded an alarm last month, one we ignore at our peril:
Scanning the news in September was terrifying. It seemed like the entire world was ablaze: Brazil, Colorado, Oregon, Washington, California—all burning. California alone lost more than four million acres in what has turned out to be the state’s worst fire season on record. These fires upended thousands of lives—tragically taking some of them—and destroyed land, homes, and livelihoods.
Climate change certainly plays a role in California’s disaster, but to an extent fire has always been part of the ecosystem here: The western US has a largely arid, Mediterranean climate.
But one place where fires shouldn’t be raging? The Amazon rainforest. It receives well north of 100 inches of rainfall a year. Yet between January and September of 2020, 6,231,100 hectares of Brazilian Amazon burned—more than during the same period of 2019, which was widely regarded as catastrophic. Some of the world’s most biologically rich forests—literally teeming with unique plants and animals—went up in smoke.
Fires of this scale in the world’s largest tropical rainforest should signal to all of us that something is very wrong—that in fact, a lot of things are terribly wrong.
Brazil’s national government encourages deforestation and defunds the agencies that protect forests and the Indigenous people who steward them. Fire often follows deforestation. Irresponsible big companies tacitly enable fires by purchasing soy, beef, and other staples that were produced on land where rainforest was cleared. Frontline communities, desperate to beat back fire, struggle to access the resources, equipment, and know-how they need to protect their forests.
What’s the Amazon end game if we don’t change? Scientists say we are approaching an ecosystem tipping point, after which the Amazon forests will gradually convert to grasslands. Take away the Amazon rainforest and what do you get? A hotter world. More fires in Brazil. More fires in California, Colorado, and Australia. More fires everywhere.
Professor of Geography and Latin American studies at the University of Florida’s College of Liberal Arts and Sciences and their Center for Latin American Studies, cited his own concerns early last year:
A disturbance on one part of the global surface can impact a place far, far away. Some computer models show that a desiccated Amazon could actually reduce rainfalls and affect agriculture in the Mississippi Valley. On the less tangible side, the Amazon is the richest store of biodiversity on the planet. You need to have that in order to keep the planet capable of evolutionary adaptation. The Amazon is essential in that respect. And anyone concerned about cultural variety and the integrity of native peoples has to place very high value on the Amazon, because it’s the only place where you really have that amount of cultural richness.
A graphic look at what’s been lost
An offer made. . .and spurned
Meanwhile, under South America’s version of Donald Trump, Brazil continues to levels the forests to pave the way for vast fields of soybeans and grazing lands for cattle.
A vast expanse of Amazon rainforest seven times larger than Greater London was destroyed over the last year as deforestation surged to a 12-year high under Brazil’s far-right president Jair Bolsonaro.
Figures released by the Brazilian space institute, Inpe, on Monday showed at least 11,088 sq km of rainforest was razed between August 2019 and July this year – the highest figure since 2008.
Carlos Rittl, a Brazilian environmentalist who works at Germany’s Institute for Advanced Sustainability Studies, said the numbers were “humiliating, shameful and outrageous” – and a clear sign of the damage being done to the environment since Bolsonaro took office in January 2019.
“This is an area a third the size of Belgium – gigantic areas of forest that are being lost simply because under Bolsonaro those who are doing the destroying feel no fear of being punished,” Rittl said.
During the 29 September Presidential debate between Trump and Joe Biden, the Democratic contender said that, if elected, he would offer Brazil $20 billion to preserve the vital rainforest.
Brazil’s President Jair Bolsonaro has slammed US presidential candidate Joe Biden for his remarks about the Amazon rainforest during Tuesday’s presidential debate, saying it was “difficult to understand such a disastrous and unnecessary declaration.”
Bolsonaro, an ally of President Donald Trump, tweeted on Wednesday saying Biden “stated yesterday that he could pay us as much as US$20 billion to stop the ‘destruction’ of the Amazon Rainforest adding that, if we did not accept this offer, he would then impose serious economic sanctions on our country.”
Bolsonaro wrote that he “unlike the left-wing presidents of the past, does not accept bribes, criminal land demarcations or coward threats toward our territorial and economic integrity,” adding that Brazil’s sovereignty was non-negotiable.
Bolsonaro searches for scapegoats
After first denying the existence of the epochal fires that have burned through much of Amazonia, he’s found a convenient scapegoat for the vast fires that have cause so much of the damage, Reuters reported in September after international pressure forced him to end his policy of malign neglect and order state resources to battle flames that have consumed ever-larger portions of the Amazonian forest.
Brazil’s President Jair Bolsonaro told the United Nations that Indigenous people in the Amazon were to blame for fires in the rainforest this year and attacked the media for spreading panic about the coronavirus pandemic.
In a pre-recorded speech to a remote session opening the U.N. General Assembly, the far-right leader rebutted international criticism of his environmental policies and his handling of the world’s second-most deadly coronavirus outbreak after the United States.
He said the rainforest’s humidity prevents fire spreading, countering experts who say ranchers use fire to clear newly deforested land for pasture, which in dry years can burn into woodland.
“The fires practically occur in the same places, on the east side of the forest, where peasants and Indians burn their fields in already deforested areas,” Bolsonaro said.
That wasn’t the only theory his administration has used, as a 25 September 2019 article in the New Yorker noted:
His foreign minister, Ernesto Araújo, who accompanied him to the U.N., claimed earlier this month that the fuss over the fires had been blown out of proportion by a campaign that had been “orchestrated by Brazilian groups that are systematically against the government” and “want to use any tools at their disposal to attack the government, even if this harms the country.” The remark was an allusion to environmentalists and indigenous-rights activists, whom Araújo has said are part of a Marxist plot. Such views are also held by a tranche of Brazil’s conservative armed forces, which has an influential role in the government. Bolsonaro, himself a former Army captain, has expressed nostalgia for the country’s right-wing military dictatorship, which ruled from 1964 to 1985, and has filled his administration with military men, naming eight former senior officers to cabinet posts. His Vice-President, Hamilton Mourão, is a retired Army general, and although Mourão is more moderate than Bolsonaro on many issues he adheres to the idea that Brazil’s sovereignty in the Amazon must be aggressively defended.
To seek the real culprits, we turn to a brief documentary from Deutsche Welle:
Who is responsible for the Amazon deforestation fires in Brazil?
Deforestation fires are surging in the Amazon, eliminating more square kilometers of rainforest this year than they have since 2009. In the Brazilian Amazon, fires are a common means of clearing the land — land that is worth five times more without the forest than with the forest — for cattle and soy fields. Brazil is the world’s leading exporter of beef and soy, but there’s also a high demand for these goods domestically.
There are preservation laws still on the books in Brazil, but Bolsonaro’s cut funding for their enforcement. Spending on forest inspection in 2020 is less than a third of what it was in 2019. Part of the Amazon can be reforested but time is critical: scientists estimate that once more than 20% of the rainforest is gone, recovery won’t be possible and the Amazon will go into a process of savanization.
Breakthrough study predicts hemispheric changes
A new study from Robert Walker, the University of Florida geographer and Latin American studies prof cited in our second quotation, confirms potentially catastrophic charges across the Americas.
The world’s largest rainforest ecosystem, the Amazon, will collapse and largely become a dry, scrubby plain by 2064 because of climate change and deforestation, a University of Florida professor predicts.
The article, Collision Course: Development Pushes Amazonia Toward Its Tipping Point, was written by Robert Walker, a professor on the faculty of the university’s Center for Latin American Studies, who describes himself as a land change scientist.
“The best way to think of the forest ecosystem is that it’s a pump,” Walker told UPI. “The forest recycles moisture, which supports regional rainfall. If you continue to destroy the forest, the rainfall amount drops … and eventually, you wreck the pump.”
It is doubtful that the Amazonian forest will remain resilient to changes in the regional hydroclimate given the nature of the contemporary threat matrix. The biggest concern involves intensification of drought-based tree mortality stemming from the synergies of fire, deforestation, and logging. Paleoindians set fires in Amazonia during the Holocene but never burned thousands of square kilometers of primary forest in a single season. Nor did wildfires sparked by agriculture race down logging roads into degraded forests flush with organic fuels from repeated ignition, ready to burn. The return period of serious drought once gave canopies sufficient time to recover from fire. The lengthening dry season has begun to squeeze away this respite.
A tipping point transgression in Amazonia involves much more than the ecological consequences of forest destruction. To begin with, water security will falter for the 35 million who call the Basin home. This is hardly the full story, because moisture originating here provides much of the continent’s rainfall and river flow, which means that tens of millions of people in other parts of South America will grow thirsty and hungry if the Amazonian nations fail to stop a tipping point transgression, thereby allowing the south-bound atmospheric rivers to run dry. The crowning irony is that the Initiative for the Integration of the Regional Infrastructure of South America regards the triborder region shared by Bolivia, Brazil, and Peru as critical to the continental plan. Unfortunately, forests in this southwestern corner of Amazonia are also critical to maintaining atmospheric moisture flow to the continent’s populous south. Thus, the development of Amazonia now lies on a collision course not only with the interests of conservation but also with the welfare of the very people it is meant to benefit.
And there’s an American, Trump-supporting hidden hand
We conclude with a video documenting the role played by an American financial titan in the ongoing rape of the Amazon.
After a three-year push by the Trump administration to open the Arctic National Wildlife Refuge in Alaska to oil drilling — an effort that culminated in a rush to sell leases before the White House changes hands — in the end the only taker may be the state of Alaska itself.
With a Thursday deadline for submitting bids for 10-year leases on tracts covering more than one million acres of the refuge, there is little indication that oil companies are interested in buying the rights to drill under difficult conditions, to extract more costly fossil fuels for a world that increasingly is seeking to wean itself off them.
Amid the uncertainty, a state-owned economic development corporation voted last week to authorize bidding up to $20 million for some of the leases. “It’s an extraordinary opportunity,” Frank Murkowski, an elder statesman of Alaska politics, told the board of the corporation, the Alaska Industrial Development and Export Authority, at a meeting before the vote.
There are legal questions surrounding the action, including whether the development authority qualifies as a bidder. And environmental organizations, some Alaska Native groups and others are seeking an injunction in Federal District Court to halt the lease sales outright, arguing that they are part of a deeply flawed process by the Interior Department that, among other things, played down scientific findings about possible damage to the refuge.