BREAKING: catastrophically rapid global warming via an 'aerosol termination shock' in the 2020s and 2030s cannot be ruled out say scientists as they urge immediate media coverage 🧵
1. A recent albedo decrease and increase in planetary heat uptake coincided with a decrease in anthropogenic sulfur emissions.
This trend could accelerate further with more sulfur emission reductions.
Rapid global warming, cannot be excluded.
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2. James Hansen warns of dire 2°C by 2040 as carefully explained here by @bberwyn.
Where are the other journalists?
insideclimatenews.org/news/15092021/…
3. There’s a fix for at least some of this short-term increase in the rate of warming:
"The only measures that can counteract this increased rate of warming over the next decades are methane reductions"insideclimatenews.org/news/15092021/…
4. Methane is rising sharply
5. The thread is being updated with further details:
6. global warming acceleration is due to the one huge climate forcing that we have chosen not to measure: forcing caused by imposed changes of atmospheric aerosols
expect warming rate for 2015-2040 to double 'unless appropriate countermeasures are taken'
mailchi.mp/caa/july-tempe…
7. Scroll up to read this helpful conversation.
Dire 1.5°C can be expected by the 2020s, or if not, by the 2030s.
2°C hell looks hard/impossible to avoid by the 2030s-2060s to my mind, though theoretically it could be delayed for many decades/centuries.
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