Claim: Global Warming May have Started in 1825

Guest essay by Eric Worrall

h/t Tallbloke; According to researchers working in the Paracel Islands, the modern warming period began in 1825, before anthropogenic CO2 could possibly have had any effect on the global climate.

Climate change: global warming may have started before industrial revolution, Chinese study says

Investigation of coral reefs in the Paracel Islands suggest the South China Sea began warming up in 1825, researchers sayUranium dating shows samples have a continuous climate record going back to 1520

Stephen Chen in Beijing
Published: 9:30pm, 7 Feb, 2021
Why you can trust SCMP

Studies of coral reefs in the Paracel Islands suggest that the South China Sea started warming up in 1825, at the start of the industrial revolution, according to a study by Chinese scientists.

That was the year the world’s first railway began operating in England and most ocean-going ships still used wind power.

Man-made carbon dioxide emissions could not fully explain such an early rise in the warming trend, they said in a peer-reviewed paper published in Quaternary Sciences on Friday.

The Paracel coral record “will fill in some important gaps in global high resolution marine environment records and help us better understand the history of environmental change in tropical waters”, said the researchers, led by Tao Shichen from the South China Sea Institute of Oceanology.

Read more:

I can’t find a link to the study so if anyone finds one please post it in the comments.

The Paracel Islands, like the better known Spratly Islands, are a contested territory in the South China Sea and a potential future geopolitical flashpoint.

If Tao Shichen’s team is correct, this study adds to the evidence that the modern warming has a significant natural forcing component.

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via Watts Up With That?

February 7, 2021 at 04:40PM

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