Thread by @ClimateBen

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.

⬇️

https://twitter.com/SunnySimons/status/1456615526952755200?s=20

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:

https://twitter.com/SunnySimons/status/1465794251925643273?s=20

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.

https://twitter.com/LeonSimons8/status/1483073913580052484?t=zu4c3opwQAsTECYRwthxNA&s=19