Highest In More Than 4 Million Years: Earth’s Carbon Dioxide Levels Soar To Record High Despite Pandemic

The COVID-19 pandemic barely registered as a blip as humanity continued to spew carbon dioxide into Earth’s atmosphere over the past year to levels not seen in more than 4 million years, scientists announced Monday. One would have to go all the way back beyond the beginning of human history – to the Pliocene Epoch,  4.1 million to 4.5 million years ago – to find a time when Earth’s atmosphere held a similar amount of carbon dioxide.

By Doyle Rice. USA TODAY. June 7, 2021.

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