New Sclerosponge Temp Reconstruction Indicates We've Already Experienced 1.7C of Warming

Crick

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The carbonate skeletons of long-lived sponges give excellent sea surface temperature values prior to their widespread instrumental measurement. A reconstruction using them for SST values shows greater post-industrial warming than prior reconstructions


This is a link to Nature.com/Climate Change which has no paywall.

"Anthropogenic emissions drive global-scale warming yet the temperature increase relative to pre-industrial levels is uncertain. Using 300 years of ocean mixed-layer temperature records preserved in sclerosponge carbonate skeletons, we demonstrate that industrial-era warming began in the mid-1860s, more than 80 years earlier than instrumental sea surface temperature records. The Sr/Ca palaeothermometer was calibrated against ‘modern’ (post-1963) highly correlated (R2 = 0.91) instrumental records of global sea surface temperatures, with the pre-industrial defined by nearly constant (<±0.1 °C) temperatures from 1700 to the early 1860s. Increasing ocean and land-air temperatures overlap until the late twentieth century, when the land began warming at nearly twice the rate of the surface oceans. Hotter land temperatures, together with the earlier onset of industrial-era warming, indicate that global warming was already 1.7 ± 0.1 °C above pre-industrial levels by 2020. Our result is 0.5 °C higher than IPCC estimates, with 2 °C global warming projected by the late 2020s, nearly two decades earlier than expected."
 
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Save the sponges!

IMG_0860.webp
 
The carbonate skeletons of long-lived sponges give excellent sea surface temperature values prior to their widespread instrumental measurement. A reconstruction using them for SST values shows greater post-industrial warming than prior reconstructions


This is a link to Nature.com/Climate Change which has no paywall.

"Anthropogenic emissions drive global-scale warming yet the temperature increase relative to pre-industrial levels is uncertain. Using 300 years of ocean mixed-layer temperature records preserved in sclerosponge carbonate skeletons, we demonstrate that industrial-era warming began in the mid-1860s, more than 80 years earlier than instrumental sea surface temperature records. The Sr/Ca palaeothermometer was calibrated against ‘modern’ (post-1963) highly correlated (R2 = 0.91) instrumental records of global sea surface temperatures, with the pre-industrial defined by nearly constant (<±0.1 °C) temperatures from 1700 to the early 1860s. Increasing ocean and land-air temperatures overlap until the late twentieth century, when the land began warming at nearly twice the rate of the surface oceans. Hotter land temperatures, together with the earlier onset of industrial-era warming, indicate that global warming was already 1.7 ± 0.1 °C above pre-industrial levels by 2020. Our result is 0.5 °C higher than IPCC estimates, with 2 °C global warming projected by the late 2020s, nearly two decades earlier than expected."

After the Little Ice Age ended, it got warmer.
Maybe that's what ended it? Weird.
 
Look on the bright side, if the oceans rise they will flood-out the blue coastal cities. :)
That will leave more Republicans to pay a higher bill.
 
Nobody cares. :dunno:


why our Federal Debt is over $30 trillion.

The first reason to care is to understand BASIC FUCKING MATH, and SUBS cannot even do that...

Why are we funding the Co2 FRAUD??

Because W, homO, Session, Wray, Barr, and Traitor Joe all protected it
 
why our Federal Debt is over $30 trillion.

The first reason to care is to understand BASIC FUCKING MATH, and SUBS cannot even do that...

Why are we funding the Co2 FRAUD??

Because W, homO, Session, Wray, Barr, and Traitor Joe all protected it

And the Joooos!!
 
The carbonate skeletons of long-lived sponges give excellent sea surface temperature values prior to their widespread instrumental measurement. A reconstruction using them for SST values shows greater post-industrial warming than prior reconstructions


This is a link to Nature.com/Climate Change which has no paywall.

"Anthropogenic emissions drive global-scale warming yet the temperature increase relative to pre-industrial levels is uncertain. Using 300 years of ocean mixed-layer temperature records preserved in sclerosponge carbonate skeletons, we demonstrate that industrial-era warming began in the mid-1860s, more than 80 years earlier than instrumental sea surface temperature records. The Sr/Ca palaeothermometer was calibrated against ‘modern’ (post-1963) highly correlated (R2 = 0.91) instrumental records of global sea surface temperatures, with the pre-industrial defined by nearly constant (<±0.1 °C) temperatures from 1700 to the early 1860s. Increasing ocean and land-air temperatures overlap until the late twentieth century, when the land began warming at nearly twice the rate of the surface oceans. Hotter land temperatures, together with the earlier onset of industrial-era warming, indicate that global warming was already 1.7 ± 0.1 °C above pre-industrial levels by 2020. Our result is 0.5 °C higher than IPCC estimates, with 2 °C global warming projected by the late 2020s, nearly two decades earlier than expected."
So based on the simple physics of radiative forcing, 1.2C of the 1.7C is from natural warming as the planet returns to its pre-glacial period temperature like it has been doing for the past 3 million years when the ice age began.
 
Your denial is false. No surprise.

Then you’re late.
Have you EVER heard of the concept of providing evidence for your challenged contentions?
 
Have you EVER heard of the concept of providing evidence for your challenged contentions?
Yes.

And your claims are denied and when challenged for scientifically valid evidence, you run and hide or use “science” which is not on point. And models.

Oh yeah. There’s reason to trust your “models.” 🙄
 
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