Many are under the impression that we have not yet reached the double CO₂-equivalent Greenhouse Gas level.
We definitely have, using the @IPCC_CH's based estimates.
Don't ask me why nobody mentions this..
Total Greenhouse gas forcing:
4 W/m² = ~560 ppm CO2-eq = 2 x CO2
We definitely have, using the @IPCC_CH's based estimates.
Don't ask me why nobody mentions this..
Total Greenhouse gas forcing:
4 W/m² = ~560 ppm CO2-eq = 2 x CO2
@IPCC_CH Every climate scientist worth their salt knows and understands this.
Forcings are what cause the climate to change.
It's the first thing you (should) learn about when you study climate change.
Forcings are what cause the climate to change.
It's the first thing you (should) learn about when you study climate change.
"We conclude that the GHG increase since 1750 already produces a climate forcing equivalent to that of 2 × CO2"
Global warming in the pipeline
@DrJamesEHansen et al. (2023)
academic.oup.com/oocc/article/3…
Global warming in the pipeline
@DrJamesEHansen et al. (2023)
academic.oup.com/oocc/article/3…
Many would rather be 'precisely wrong than roughly right'.
I think that's completely wrong!
We shouldn't ignore tropospheric ozone, which produces a FORCING of about 0.51 W/m².
Equal to about 16 years, or 640 billion tonnes of CO₂ emissions.
I think that's completely wrong!
We shouldn't ignore tropospheric ozone, which produces a FORCING of about 0.51 W/m².
Equal to about 16 years, or 640 billion tonnes of CO₂ emissions.
https://x.com/AndrewDessler/status/1841145487165985069?t=BOzi-gKamKLtstcgCuAWpg&s=19
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