New study clearly shows that global warming has happened naturally before – with no help from humans. However, that good news has been twisted 180 degrees to warn us about “humanity’s out-of-control warming of the planet.” In fact, the study found “multiple” times when the earth has been warmer than today, again, with no help from humans.
“Ancient Plants Buried a Mile Under Greenland’s Ice Are a Grim Warning From The Past,” reads the headline on sciencealert.com.
The evidence comes from an ice core sample excavated in 1966 – more than 50 years ago – in the secret Cold War military base Camp Century in northwestern Greenland. The plan was to dig a system of tunnels to hide hundreds of nuclear weapons. (The plan failed because the ice was too unstable.)
Included in the core were several meters of silty ice and frozen sediment from the bottom of the 1.4-kilometer (0.87-mile) ice core. This sediment was packed in cookie jars – yes, cookie jars! – and moved from freezer to freezer, finally ending up in Denmark where it languished in cold storage, almost forgotten.
It was only rediscovered in 2018 when scientists at the University of Copenhagen were preparing to move the samples to a new freezer. When they realized what was in the jars, they mobilized a team to study the ancient dirt.
“What we discovered was delicate plant structures – perfectly preserved. They’re fossils, but they look like they died yesterday. It’s a time capsule of what used to live on Greenland that we wouldn’t be able to find anywhere else,” said geologist Andrew Christ of the University of Vermont, one of the team of international scientists.
The twigs and leaves in the samples suggest that, at least once within the last million years, and multiple times in the few million years prior, Greenland’s ice sheet melted long enough during periods of warmth that significant vegetation – perhaps even a forest – was able to take root and thrive.
They were warm periods like those we are currently experiencing due to climate change, said Christ.
“Our study shows that Greenland is much more sensitive to natural climate warming than we used to think – and we already know that humanity’s out-of-control warming of the planet (emphasis added) hugely exceeds the natural rate,” Christ said.
Similar articles in other publications display the same convoluted logic.
“Scientists stunned by fossils found deep beneath Greenland’s ice sheet,” reads the headline on cnet.com. “The implications of the discovery could be huge for studies on climate change, given that analysis of Greenland’s ice sheet could help scientists predict how it will behave as temperatures rise and the ice melts as a result of human activity.” (emphasis added)
“Scientists’ climate warning after ‘grave’ rediscovery from secret Cold War military base,” reads the headline on news.sky.com. A ‘grave’ rediscovery?
Same with Yahoo.com. “Ancient leaves preserved under a mile of Greenland’s ice – and lost in a freezer for years – hold lessons about climate change,” reads the headline on yahoo.com.
“How old were these plants?” asks yahoo.
“Over the last million years, Earth’s climate was punctuated by relatively short warm periods, typically lasting about 10,000 years, called interglacials, when there was less ice at the poles and sea level was higher. The Greenland ice sheet survived through all of human history during the Holocene, the present interglacial period of the last 12,000 years, and most of the interglacials in the last million years.”
“(This) research shows that at least one of these interglacial periods was warm enough for a long enough period of time to melt large portions of the Greenland ice sheet, allowing a tundra ecosystem to emerge in northwestern Greenland.
“This means the region melted entirely, and stayed melted long enough for cosmic rays to form those isotopes, and for vegetation to grow and take them up, with moss and maybe even trees thriving.”
“Radiocarbon dating and luminescence dating – estimating the time since the sediment was last exposed to light – placed that melting to within the last million years.”
Previous work on another ice core, GISP2, extracted from central Greenland in the 1990s, showed that the ice had also been absent there within the last million years, perhaps about 400,000 years ago. (I mention the GISP ice cores in “Not by Fire but by Ice.”)
So let me end with this:
This new study clearly shows that global warming has happened – naturally – many times before with absolutely no help from humans.
I find it incredible that these so-called ‘scientists’ can twist such good news into a catastrophic warning about “humanity’s out-of-control warming of the planet.”
The yahoo.com article (though wrong-headed) is – by far – the most comprehensive article of the lot.)
The actual scientific study, entitled “A multimillion-year-old record of Greenland vegetation and glacial history preserved in sediment beneath 1.4 km of ice at Camp Century,” was published in the journal Proceedings of the National Academy of Sciences on Monday, March 16, 2021.
Thanks to Laurel, Gordon Broussard, Lyn Jenkins and Michael Battle for these links
“So, repeated plant cycles are now proven – but this time ONLY we are at fault?” says Laurel. “Aaargh.”
“Here they are clearly saying global warming has happened naturally before and is nothing to do with humans,” says Michael.
“It only PROVES that Greenland was MUCH WARMERÂ hundreds of thousands of years ago, allowing trees to grow there,” says Lyn. “……and the WARMING WAS NOT CAUSED BY MAN !!”
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March 16, 2021 at 01:56PM