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En-en adult card 42 methane hydrates: Difference between revisions
En-en adult card 42 methane hydrates (view source)
Revision as of 11:58, 12 February 2021
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== Explanation == | == Explanation == | ||
Permafrost is a soil whose temperature remains below or equal to 0°C for at least two consecutive years<ref>[https://www.ipcc.ch/site/assets/uploads/2018/03/WG1AR5_SummaryVolume_FINAL_FRENCH.pdf#page=212 Glossary, Report 5, Working Group 1 (French)]</ref>. | |||
Two cards were added after card 40: they are loops of potential violent feedback, "climate bombs", which if triggered, make us lose control over the climate for good. | |||
Thermokarst are veritable bioreactors at the heart of the process of releasing frozen carbon: when the permafrost thaws, pieces of soil detach and fall into the water, bringing nutrients and carbon to the bacteria and plankton present in the sea, which degrade them into CO<sub>2</sub> (in the water layers near the surface) and methane or CH<sub>4</sub> (in the oxygen-deprived bottom)<ref>[https://lejournal.cnrs.fr/articles/pergelisol-le-piege-climatique CNRS The newspaper Pergélisol, the climate trap (French)]</ref>. | |||
== Other possible links == | |||
=== Causes === | |||
[[En-en adult card 14 energy budget|Energy budget]] If we want to stay within the same logic of energy conservation, the thawing of the permafrost should be linked to the energy budget. | |||
== References == | |||
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