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The Geological Record of Climate Change and Why Today’s Increase in Atmospheric CO2 Is the Result of

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rangerrebew:
The Geological Record of Climate Change and Why Today’s Increase in Atmospheric CO2 Is the Result of Global Warming, Not the Cause
2 days ago Guest Blogger 225 Comments
David Shelley*

The climate is changing, and the geological record of climate change clearly shows that (a) we live in an unusually cold climate, (b) recent warming is neither dangerous or unusual, and (c) the main drivers of climate change are the sun, the oceans, and plate tectonics.

First, I will describe climate change over the last million years, and especially the last 120,000 years, including local (Christchurch, NZ) and other well-known examples. Then I will put this in the context of the last 540,000,000 years, a period known as the Phanerozoic during which most complex life forms developed and evolved. This period was almost always much warmer than today, with this warmer climate being punctuated by three important cold periods, one of which we remain in today.

I will then discuss in section 3 below the roles CO2 and our emissions play in climate. I will argue that almost all our emissions should have dissolved in the oceans to maintain an equilibrium partitioning of ca. 50/1 CO2 between the oceans and the atmosphere, which means that all other things being equal, CO2 levels in the atmosphere should have risen by only 7 ppm. This is not what has happened, and climate scientists have proposed, therefore, that our CO2 emissions must “hang around” in the atmosphere for 300 to 1000 years. However, that idea makes no sense, given that every water droplet in clouds is dissolving CO2 and transporting it via rain into the oceans. No reason to hang around at all. Instead, I propose that the observed ocean warming since 1905 (probably due to the sun, possibly volcanic activity) has resulted in the release of oceanic CO2, which is the main reason why atmospheric CO2 has increased by 140 ppm. I propose, too, that ocean warming is responsible for warming the lower atmosphere. Our emissions play no part whatsoever in the global warming.

https://wattsupwiththat.com/2024/11/02/the-geological-record-of-climate-change-and-why-todays-increase-in-atmospheric-co2-is-the-result-of-global-warming-not-the-cause/

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