Interesting interview with professor Peter Wadhams
In this youtubevideo from 11. August 2020 Arctic sea ice professor Peter Wadhams is interviewed by Sandy Schoelles and Jennifer Hynes. In this interview Wadhams says that a 50 gigaton outbreak of methane in the Arctic that can happen at any time, proposed by Natalia Shakhova 2008, is a very conservative estimate. The real number would be 700 gigatons of methane. And this can happen at any time, during the next few years. Wadhams says that a 50 gigaton outbreak would increase the global temperature with 0,6 degrees celsius, so when I calculate, 700 gigatons would increase it with 14 times more, i.e. with 8,4 degrees celsius, which would almost instantly wipe out humanity.
According to Wadhams, the methane threat is the biggest threat to humanity and the planet that exists.
So according to Wadhams, doomsday is very, very near.
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In this article, climate scientist Malcolm Light says that a 50 gigaton burp of methane from the Arctic will increase the global temperature with 10 degrees celsius. He writes thus:
"3. The Major Arctic Permian Style, Methane Blowout - Firestorm Event which will cause the release of some 50 Gt of methane from the Arctic shelf and slope (Shakhova, 2010), a 10 Degree Centigrade Rise in Mean Global Atmospheric Temperatures causing a Catastrophic Permian Style Global Extinction Event, is timed to begin on 4th September, 2021 using an Atmospheric Methane Global Warming Potential of 100. This is an end Summer event for the Northern Hemisphere."
If Malcolm Light is right, and a 50 gigaton burp really produces a 10 degrees celsius rise, then a 700 gigaton burp would rise global temperature with 140 degrees, i.e. making it into a Venus-like planet.
