by J. Dangler & J. Reid, Mar 25, 2023 in WUWT

A new way of looking at the the atmospheric carbon budget.

Climate science is usually concerned about the question “How much CO₂ remains in the atmosphere?”, given the anthropogenic emissions and the limited capability of oceans and biosphere to absorb the surplus CO₂ concentration. This has led to conclusions of the kind that a certain increasing part of anthropogenic emissions will remain in the atmosphere forever. The frequently used notion of “airborne fraction”, which is the part of anthropogenic emissions remaining in the atmosphere, seems to suggest this.

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Assuming the unlikely worst case that CO2 concentration is fully responsible for all global temperature changes, the maximum expected rise of global temperature caused by the expected CO2 concentration rise is 0.4 _C from now or 1.4°C from the beginning of industrialisation.