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How protecting the ocean can save species and fight climate change

By Sarah Kaplan

Humanity has no better friend on this planet than the ocean. It provides more than half the oxygen we need to breathe. It supplies food that helps sustain more than 3 billion people. It absorbs many of the pollutants we keep pumping into the atmosphere: carbon dioxide, ozone-depleting chemicals.




Trawling ocean floor for fish has carbon footprint equivalent to global aviation

By Louise Boyle

Commercial fishing vessels which drag the ocean floor produce carbon emissions on a level with global aviation, according to a groundbreaking study, which has calculated for the first time the climate impacts of the widespread practice.

Bottom trawling is favoured by commercial fishing companies as the weighted nets drag up large quantities of fish in one go.




Scientists push to add “huge” fish trawling emissions to national inventories

By Joe Lo Photo: Greenpeace/Roger Grace

A group of scientists and economists are pushing for bottom-trawling fishing emissions to be added to nations’ greenhouse gas inventories, as a study reveals the practice is responsible for 1 billion tonnes of underwater emissions every year.

Trawlers catch fish by dragging nets along the seabed. This process disturbs the carbon stored in sediment, releasing it as carbon dioxide and acidifying the ocean. The annual emissions from this practice are greater than those of Germany, according to the study published in Nature.



How Industrial Fishing Creates More CO2 Emissions Than Air Travel

By Aryn Baker

It’s been well established by now that the agricultural systems producing our food contribute at least one fifth of global anthropogenic carbon emissions—and up to a third if waste and transportation are factored in. A troubling new report points to a previously overlooked source: an industrial fishing process practiced by dozens of countries around the world, including the United States, China, and the E.U.




Bottom trawling releases as much carbon as air travel, landmark study finds

Photo: Howard Wood

Fishing boats that trawl the ocean floor release as much carbon dioxide as the entire aviation industry, according to a groundbreaking study.

Bottom trawling, a widespread practice in which heavy nets are dragged along the seabed, pumps out 1 gigaton of carbon every year, says the study written by 26 marine biologists, climate experts and economists and published in Nature on Wednesday.