Greenland’s ice cap marches towards extinction


We begin with a brief excerpt from a report By Clare Foran, associate editor of and political writer for The Atlantic:

Denial of the broad scientific consensus that human activity is the primary cause of global warming could become a guiding principle of Donald Trump’s presidential administration. Though it’s difficult to pindown exactly what Trump thinks about climate change, he has a well-established track record of skepticism and denial. He has called global warming a “hoax,” insisted while campaigning for the Republican nomination that he’s “not a big believer in man-made climate change,” and recently suggested that “nobody really knows” if climate change exists. Trump also plans to nominate Republicans to lead the Environmental Protection Agency and the Energy Department who have expressed skepticism toward the scientific agreement on human-caused global warming.

Indeed, Trump’s election is a triumph of climate denial, and will elevate him to the top of a Republican Party where prominent elected officials have publiclyrejected the climate consensus. It’s not that the presidential election was a referendum on global warming. Climate change barely came up during the presidential debates, and voters rated the environment as a far less pressing concern than issues like the economy, terrorism, and health care. But that relative lack of concern signals that voters have not prioritized action on climate change, if they want any action taken at all. Trump’s victory sends a message that failing to embrace climate science still isn’t disqualifying for a presidential candidate, even as scientists warn that the devastating consequences of global warming are under way and expected to intensify in the years ahead.

Trump’s elevation of the Republican booboisie to positions of unprecedented power over the national climate agenda represents the start of a truly dystopian nightmare.

It would all be bizarrely humorous were the consequences not so great and at what history may well look back on as a nexial moment in world politics.

and as for that evidence, consider this from the National Oceanic and Atmospheric Administration:

blog-greenland

And the report:

Although surface melt on the Greenland Ice Sheet did not set a new record in 2016, the long-term trend of decreasing mass continued, according to the latest Arctic Report Card from NOAA and its partners. Multiple factors likely contributed to ice loss in 2016: early melt-season onset, low reflectiveness (“albedo” to climate experts), and unusually high air temperatures and prolonged melt in some regions.

Adapted from the 2016 Arctic Report Card, this graph shows monthly changes in Greenland’s total ice mass between April 2002 and April 2016. The ice mass amounts measured (vertical axis) are relative to the ice mass as of April 2002 (horizontal line set to 0). Report card authors estimated the changes based on measurements by NASA’s Gravity Recovery and Climate Experiment (GRACE). The background photo is from Operation IceBridge.

The ups and downs in the graph track the accumulation of snow in the cold season and the melting of the ice sheet in the warm season. The Arctic Report Card: Update for 2016 reported that between April 2015 and April 2016, Greenland lost approximately 191 gigatonnes of ice, roughly the same amount that was lost between April 2014 and April 2015. Though the April 2015–April 2016 mass loss was lower than the average April-to-April decline over the entire observation period, it continued the long-term melt trend: approximately 269 gigatonnes per year from 2002 to 2016.

Over the course of the  2016 warm season, melting was especially pronounced in Greenland’s southwest and northeast. Melt season lasted about 30 to 40 days longer than usual in the northeast, and about 15 to 20 days longer along the west coast. Albedo (the proportion of incoming solar radiation reflected back into space) was the fifth lowest since the year 2000. Albedo was particularly low in the southwest, and near normal only in the northwest.

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