Rainforests Near The South Pole And Summers 38°C Warmer Than Today During The Age Of Dinosaurs
By Kenneth Richard on 13. May 2021
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Fossilized evidence of temperate rainforests only hundreds of kilometers from Antarctica’s South Pole (82°S) has been uncovered. It suggests the warmest mean month was 18.5°C about 90 million years ago. Today the warmest mean month for this location is about -20°C.
Image Source: EarthSky (press release for Klages et al., 2020)
Despite rapidly rising CO2 concentrations, the Antarctic continent as a whole hasn’t warmed in the last 70 years (Singh and Polvani, 2020).
Image Source: Singh and Polvani, 2020
Scientists have determined that, for Central Antarctica, there is an increasingly negative greenhouse effect as CO2 concentrations rise (Schmithüsen et al., 2015). This means that the more humans emit CO2 by burning fossil fuels, the colder Antarctic temperatures get. The Northern Hemisphere also has a “comparatively weak” near-zero CO2 greenhouse effect for the Arctic (Greenland). These near-zero to negative CO2 greenhouse effect conditions are opposite the (modeled) expectation that rising CO2 amplifies warming in polar climates.
https://notrickszone.com/2021/05/13/rainforests-near-the-south-pole-and-summers-38c-warmer-than-today-during-the-age-of-dinosaurs/
