GHGs At Highest Level In 800,000 Years
“We can firmly say that today’s concentrations of carbon dioxide and methane are 28 and 124 percent higher respectively than at any time during the last 800,000 years,” said Thomas Stocker, an author of the report at the University of Berne.
The report, published in Nature report also set a new record low for carbon dioxide at 172 parts per million in the atmosphere about 667,000 years ago. Carbon dioxide levels are now at about 380 ppm.
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