En-en adult card 41 permafrost: Difference between revisions

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En-en adult card 41 permafrost (view source)

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Karen Schmitt

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-{{Card
+== Card #41: Permafrost ==
-|number=41
+<center>
-|version=adult
-|title=Permafrost
-}}
-== Explanation ==
+[[File:En-en_adult_card_41_front.png|400px]]
-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 [[wikipedia:Climate_change_feedback|feedback]], "climate bombs", which if triggered, make us lose control over the climate for good.
+Permafrost is permanently frozen ground. It is starting to melt, releasing into the atmosphere previously locked-in methane and CO<sub>2</sub> from decomposed biomass. This creates a negative feedback loop, just like forest fires and albedo changes due to melting sea ice.
-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 Permafrost, the climate trap (French)]</ref>.
+</center>
-== Facilitation tips ==
+==Explanation==
-For online murals, you can show this [https://youtu.be/YegdEOSQotE?t=82 video] from the University of Alaska Fairbanks showing the flammable methane stored in the permafrost.
+Permafrost is soil that is permanently frozen 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>.
+The two last cards to be added to the Fresk after card 40 are potentially violent [[wikipedia:Climate_change_feedback|feedback]] loops or "climate bombs" which, if triggered, would cause us to 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 (CH<sub>4</sub> -- in the oxygen-deprived depths)<ref>[https://lejournal.cnrs.fr/articles/pergelisol-le-piege-climatique CNRS The newspaper Permafrost, the climate trap (French)]</ref>.
+==Correction ==
+===Causes===
+*[[En-en adult card 21 temperature rise|Rising Air Temperatures]]
+===Consequences===
+*[[En-en_adult_card_9_other_ghgs|Other GHGs]]
+==Other possible links==
+===Other causes===
+*[[En-en adult card 14 energy budget|Energy budget]] If we take the idea of energy conservation all the way, we can link the thawing permafrost back to the energy budget.
-== Other possible links ==
+===Other consequences===
+* [[En-en adult card 13 additional greenhouse effect|Additional greenhouse effect]] The permafrost card can be linked either to Other GHGs or to Additional Greenhouse Effect. The Other GHGs card is about GHGs emitted by human activities, while the methane in permafrost is not of human origin.
+*[[En-en adult card 28 vectors of disease|Vectors of disease]] Permafrost contains billions of buried bacteria and viruses. If it melts, diseases might contaminate humans and animals. In 2016, there was an [https://www.bbc.com/news/world-europe-36951542 outbreak of anthrax] caused by a melted reindeer carcass.
-=== Causes ===
+==To go further==
-[[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.
+For online murals, you can show this [https://youtu.be/YegdEOSQotE?t=82 video] from the University of Alaska Fairbanks showing the flammable methane stored in the permafrost.
-== To go further ==
 Climate Action Network France: [https://reseauactionclimat.org/carbone-degel-pergelisol-rechauffement-climatique/ Thawing permafrost carbon will increase global warming], 2018 (French)
 RT France documentary: [https://www.youtube.com/watch?v=jUIYnuoD8To The mystery of permafrost] (French)
-== References ==
+==References==
 <references />
+[[fr:Fr-fr_adulte_carte_41_permafrost]]