Methane is the second gas contributing to the greenhouse effect linked to human activities, after carbon dioxide (CO2).
Its emissions have contributed to 0.5 ° C of the 1.1 ° C rise in the Earth's average temperature over the past decade, compared to the 1850-1900 average, the latest IPCC report (Groupe d 'intergovernmental experts on climate change), published last August.
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CO2 emissions are responsible for an average increase of 0.75 ° C, despite a presence 200 times greater in the atmosphere.
As a result,
"a rapid attenuation of CH4 emissions
(the chemical formula of methane, editor's note) will
considerably increase the possibility of stabilizing global warming below 2 ° C or even at 1.5 ° C by 2100, while presenting benefits for human health and ecosystems, ”
explained William Collins, professor of climate processes at the University of Reading (Great Britain), from 2018.
A powerful effect
The IPCC took up this idea.
Because
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