Co2 levels at highest for 3 million years | The Daily Star
12:00 AM, April 06, 2019 / LAST MODIFIED: 12:31 AM, April 06, 2019

Co2 levels at highest for 3 million years

The last time carbon dioxide levels were this high, Greenland was mostly green, sea levels were up to 20 meters higher and trees grew on Antarctica, according to scientists who warned this week that there is more CO2 in our atmosphere today than in the past three million years. Using a new computer simulation, researchers at the Potsdam Institute for Climate Impact Research (PIK), in Germany, found that the last time the earth's atmosphere had a CO2 concentration as high as today's was during the Pliocene epoch, the geological period 2.6-5.3 million years ago. CO2 emissions from human activities are the leading cause of climate change. Lead-author Matteo Willeit told CNN that according to the simulation CO2 levels should not be higher than 280 parts per million (ppm) without human activity, but that they are currently 410 ppm and rising.

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