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A comment on The State of Carbon Dioxide Removal. Parent comment

Re:The State of Carbon Dioxide Removal by dralley on Saturday June 15, 2024 @05:54PM (#40692974)
>a healthy, fully greened planet

You're making a lot of very strong assumptions, notably

* That a healthy planet is a "fully green" one

* That a "fully green" planet is healthy to the organisms that currently live on that planet, particularly humans

The Jurassic Era, for example, was much more "green". Humans wouldn't have fared very well in the Jurassic Era.

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Re:The State of Carbon Dioxide Removal by jaggederest on Saturday June 15, 2024 @06:07PM (#40693051)
Average temperatures in the Jurassic were only about +2.5C over current averages.

We're shooting north of the Carboniferous (+3C) and headed towards the Cretaceous Hot Greenhouse period, where average temps were +5C to +8C over where they are now.

Probably not survivable for humanity as we know it now.

We're already seeing wet bulb temperatures over the survivable maximum in some parts of the world, imagine stacking another 3-5C on top of that. Large parts of equatorial land would be fatally warm to humanity, and the temperate band for growing crops would shift at least a thousand miles north.

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