paleoclimatology, Tag

By Andy May The description of the Pages2k.R program is in the Appendix at the end of this post. In my last post, I discussed the problems with the Pages…

By Andy May I’m reviewing the Pages 2k temperature proxies one-by-one as I once reviewed Marcott’s proxies (May, 2018). There are 647 Pages 2k proxies, so this is a big…

The predictions of climate doomsayers reveal an embarrassing ignorance of a capricious geological history shaped by natural forces too powerful for human control and too complex to allow for meaningful forecasts.

Published studies show that science has long been aware of significantly more extreme and rapid temperature shifts throughout Earth’s history.

Fuerteventura, one of the eight major Canary Islands, was not the “desert in the ocean” it is today throughout the Early to Middle Holocene.

The presence of such biological material is undeniable evidence that glaciers have historically expanded and retreated in natural cycles long before industrial CO2 emissions [04:10].

Settled science becomes unsettled....film at 11.

The truth is, no one can ever know. And this is where the science rubber really hits the road.

Carbon dioxide levels in this dataset vary between 170 parts per million (ppm) and 280 ppm. If the level had fallen below 150 ppm, photosynthesis would have stopped and an almost certain mass extinction of land-based life...

In contrast to the dramatic climate shifts tied to volcanism and “unforced natural climate variability,” modern Greenland has not warmed (net) in the last 100 years despite the foreboding “anthropogenic forcing”...

In climate policy, confidence should track evidence. And here, the evidence points not to imminent tropical marine extinction at 1.5 °C, but to a system that has endured comparable warming before without collapsing.

“D–O signals [10-16°C warming events within decades to centuries] are not just seen in Greenland – they are registered globally.” – Liu et al., 2026

A new pollen-based reconstruction study shows Greenland warmed 10–16°C within decades during 11 Dansgaard–Oeschger events between 57,000 and 29,000 years ago, when atmospheric CO₂ was near 200 ppm...

It is highly unlikely that today is the warmest Earth has been in the past 6,800-7,800 years or that today's warming is unprecedented.

Iron is a vital nutrient for marine life and plays a significant role in regulating atmospheric carbon dioxide by influencing the growth of phytoplankton, which absorb carbon dioxide.