Thread by @ClimateBen

Siberian Yedoma region:

1. Warming: from 3°C up to 6°C
2. Huge carbon release by 2029
3. CH₄ per year: 4 megatons
4. CO₂ per year: 44 megatons
5. Decadal 40Gt carbon pulse threat
6. Fastest warming places on Earth
7. Permafrost melt beyond control
8. Self-amplifying process

⚠️ Permafrost has been rapidly thawing because Siberia is warming up faster than almost anywhere else on Earth ('more than 3C since preindustrial times'):
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independent.co.uk/news/long_read…

🌡️Yakutia: 'as much as 6C higher than average':
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https://twitter.com/ClimateBen/status/1178382811671252992?s=19

⚠️CO2 emission alone is greater than that pumped out by 1 million automobiles.
Methane is so powerful a greenhouse gas that the forcing provided by 4 megaton emission is nearly twice that.
robertscribbler.com/2013/08/08/yed…

⚠️ IPCC still omits abrupt thaw emissions:
nationalgeographic.com/environment/20…

Analysis led by the UK's Met Office recognised the 'plausibility of catastrophic carbon releases from Arctic permafrost thawing of between 50-100 Gt this century, with a 40 Gt carbon release from the Siberian Yedoma region possible over four decades'.

theguardian.com/environment/ea…

From July 2013:

'A large region called the Yedoma could undergo runaway decomposition once it starts to melt. This is because elevated temperatures cause microbes in the soil to decompose, which causes heat, which creates a self-amplifying process.'
theconversation.com/methane-and-th…

⚠️ 'it is becoming clear Earth is entering a shift in state of the atmosphere-ocean system associated with destructive climate tipping points. As Arctic permafrost is thawing an analogy with geological methane-release events...is becoming more likely.'

counterpunch.org/2018/03/07/the…