Prehistoric Earth Was Very Hot. That Offers Clues About Future Earth.
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Prehistoric Earth Was Very Hot. That Offers Clues About Future Earth.
https://www.nytimes.com/2024/09/19/climate/prehistoric-earth-temperatures.html?unlocked_article_code=1.L04.g0To.qgrzXIloa82B&smid=url-share
At times during the past half-billion years, carbon dioxide warmed our planet more than previously thought, according to a new reconstruction of Earth’s deep past.
Also: washington post coverage
The GMST-CO2 relationship indicates a notably constant “apparent” Earth system sensitivity (i.e., the temperature response to a doubling of CO2, including fast and slow feedbacks) of ∼8°C, with no detectable dependence on whether the climate is warm or cold.
This is a very very big deal if it turns out to be valid in the present world.