If you think CO2 levels are high today, guess how high they were 4 million years ago! Where did all of it go?
The Difference Between Global Warming And Climate Change –
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Dinosaur Era Had 5 Times Today's CO2
"Dinosaurs that roamed the Earth 250 million years ago knew a world with five times more carbon dioxide than is present on Earth today, researchers say, and new techniques for estimating the amount of carbon dioxide on prehistoric Earth may help scientists predict how Earth's climate may change in the future."
Antarctic CO2 Hit 400 ppm For First Time In 4 Million Years
"We're officially living in a new world. Carbon dioxide has been steadily rising since the start of the Industrial Revolution, setting a new high year after year. There's a notable new entry to the record books. The last station on Earth without a 400 parts per million (ppm) reading has reached it."
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