“But Historical Times”


[RUSSELL] Yet mankind muddled through the last Ice Age’s death throes and has done rather well since, despite a 100-meter rise in sea levels!



Objections and Replies

Reply. We have evidence that the indian genocide contributed to the Little Ice Age.


Reply. At present rates of human emissions, there will be more CO2 in Earth’s atmosphere by 2025 than at any time in at least the last 3.3 million years.


{Sensitivity} The bigger the temperature swings in historical times, the bigger should be climate sensitivity.


2020-07. Atmospheric CO2 during the Mid-Piacenzian Warm Period and the M2 glaciation. https://doi.org/10.1038/s41598-020-67154-8

2019-03. Earth system impacts of the European arrival and Great Dying in the Americas after 1492. DOI: 10.1016/j.quascirev.2018.12.004

2009-03. Amplification of the North American “Dust Bowl” drought through human-induced land degradation. DOI: 10.1073/pnas.0810200106


GSA Geologic Time Scale.