Marine life threatened by becoming tangled with or ingesting plastic waste in the oceans. From the report.
The 20th Century is notable for four major technological innovations, each problematic: Nuclear power/weapons, antibiotics, the digital computer, and plastics.
Nuclear gave us the threat of planetary genocide and environmental degradation, antibiotics gave rise to resistant strains of bacteria, the computer gave rise to the panopticon surveillance state, and plastics have proven to cause a host of afflictions and threaten the oceans from which we all draw life.
It’s this last threat that is the subject of a sobering new report.
From the United Nations News Center:
Marine debris is negatively affecting more than 800 animal species and causing serious losses to many countries’ economies, according to a United Nations report launched Monday.
The report, Marine Debris: Understanding, Preventing and Mitigating the Significant Adverse Impacts on Marine and Coastal Biodiversity found that the number of species affected by marine debris has increased from 663 to 817 since 2012. It also warned that this type of waste, which is mostly made of plastic, is an increasing threat to human health and well-being, and is costing countries billions of dollars each year.
“I hope that this report will provide governments and other stakeholders with the information needed to take urgent actions to address marine debris, one of the most prominent threats to marine ecosystems, and support healthy and resilient oceans as a critical aspect of achieving sustainable development,” said Braulio Ferreira de Souza Dias, the Executive Director of the Convention on Biological Diversity (CBD).
The report was launched in Cancun, Mexico, on the sidelines of the 13th meeting of the Conference of the Parties to Convention, known as ‘COP13,’ where governments and private sector delegations have been gathered since 2 December to discuss, among others, how to integrate biodiversity into policies relevant to agriculture, forestry, fisheries and tourism sectors. The meeting wraps up on 17 December.
Marine debris is usually defined as any persistent, manufactured or processed solid material discarded, disposed of, or abandoned in the marine and coastal environment. Three-quarters of all marine debris is plastic, a persistent and potentially hazardous pollutant, which fragments into microplastics that can be taken up by a wide range of marine organisms.
The most common types of marine debris are: food wrappers, bottle caps, straws, grocery bags, beverage bottles and cigarette butts. Five of these items are made of plastic.
Marine and coastal species – fish, seabirds, marine mammals and reptiles – are affected by marine debris mostly through ingestion or entanglement. According to the report, 40 per cent of cetaceans, and 44 per cent of seabird species are affected by marine debris ingestion. The effect of ingestion is not always understood, as many ingest microplastics – little pieces or fragments that are less than five millimetres in diameter.