Yet another region of the globe has failed to cooperate with the anthropogenic “global” warming narrative. [emphasis, links added]
According to climate models constructed on the presumption that CO2 concentration changes are the driver of climate, Central Africa should have been warming in recent centuries in tandem with the rise of atmospheric CO2.
However, scientists (Ménot et al., 2025) using brGDGT (branched glycerol dialkyl glycerol tetraether) proxies to reconstruct paleotemperature trends have determined that the Cameroon region test site is likely colder today than at any other time in the last 7,000 years.
Mean annual air temperatures (MAAT) are 22°C at the study site today.
About 7,000 years ago, when CO2 concentrations were ~265 ppm, MAATs were 24.5 to 25.5°C, or at least 2.5°C warmer than today.
As CO2 levels rose throughout the mid- to late-Holocene, temperatures continued to decline. This negatively correlated trend is the opposite of model predictions.
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o what?
Earth was much warmer with higher CO2 levels in all greenhouse ages, which were most of Earth’s history (roughly 70% of the past 2.5 billion years)
There was a warm period in the 2nd half of the Holocene Climate Optimum 5000 to 9000 years ago.
so what?
+2.5 degree is a wild guess and a local proxy, not global average
K. Richard is a biased and an unreliable author.
Whereas R. Greene is a biased and uninformed commentator.
Who you insult because you can’t refute
The truth you wont get from the M.S. Media Bottom Feeders and Eco-Freak/DNC/Globalists