Mastodawn

Peter Gleick Feb 21

You are here.
We've breached 430 ppm CO2.
#climatechange

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Taran Rampersad Feb 22

@petergleick yup. 870 ppmv is getting mighty close with that gradient.

This from 2023:

"...That would be edging close to the average CO2 concentrations (870 ppmv) associated with huge crashes in marine biodiversity over the last 534 million years, according to a study published June 22 in the journal Earth's Future..."

https://www.livescience.com/planet-earth/climate-change/19-mass-extinctions-had-co2-levels-were-now-veering-towards-study-warns

19 'mass extinctions' had CO2 levels we're now veering toward, study warns

The research looked at peaks in biodiversity loss and their relationship with atmospheric CO2, finding 50 events over the last 534 million years that can be considered mass extinctions.

Live Science

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Taran Rampersad

@petergleick my brain catching up with what i read today before bed...

Oxygen levels can be increased by nuclear reactors... but that isn't really a solution because it does so by electrolyzing water. It's too late for me to math, but glancing at estimates isn' giving me high optimism, particularly against thst gradient (and implicit ratio of atmosphere is in that ppmv)...

We need to STAHP BURNING DA STUFFS.