Bottom Trawling for Fish Boosts Carbon Emissions, Study Says | Time - 0 views
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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.
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According to calculations conducted by the report’s 26 authors, bottom trawling is responsible for one gigaton of carbon emissions a year—a higher annual total than (pre-pandemic) aviation emissions.
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measures how much each so-called “pixel” contributes to global marine biodiversity, fish stocks and climate protection, based on a complex analysis of location, water temperature, salinity and species distribution, among other factors. It also tracks how much CO2 each pixel is capable of absorbing as a carbon sink.
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Worse still, the practice also impacts the ocean’s ability to absorb atmospheric carbon: if the water is already saturated from sources down below, it will be unable to absorb human-caused emissions from above, hamstringing one of our best assets in the fight against climate change.
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Technological innovations such as green power generation and battery storage are vital for reducing global greenhouse gas emissions. But we still need to reduce atmospheric carbon, and so far technology has not been able to do that affordably and at scale.