Earth’s carbon dioxide levels are likely the highest they’ve been in 15 million years

AGR Daily News

Co2 levels 600 BC to today NOAA

Earth’s carbon dioxide levels are likely the highest they’ve been in 15 million years

Direct measures of the air show carbon dioxide levels have recently hit 410 parts per million, or ppm, the highest-recorded number in human history.

“For the most part, carbon dioxide was below 400 ppm for the last 14 million years or so,” Matthew Lachniet, a paleoclimatologist at the University of Nevada, Las Vegas, said in an interview.

SEE ALSO: This scientist keeps winning money from people who bet against climate change

There may have been a time, roughly 3 million years ago during an extremely warm period called the Pliocene Epoch — when sea levels were between 16 and 131 feet higher than today — during which carbon concentrations could have approximated present levels.

“However, the concentration of CO2 currently in Earth’s atmosphere is higher or is nearly as high as it has been over any time period during the…

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