Antarctic CO2 Hit 400 PPM For First Time in 4 Million Years | Climate Central

By Brian Kahn.–“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.

“A little 400 ppm history. Three years ago, the world’s gold standard carbon dioxide observatory passed the symbolic threshold of 400 ppm. Other observing stations have steadily reached that threshold as carbon dioxide spreads across the planet’s atmosphere at various points since then. Collectively, the world passed the threshold for a month last year.

“In the remote reaches of Antarctica, the South Pole Observatory carbon dioxide observing station cleared 400 ppm on May 23, according to an announcement from the National Oceanic and Atmospheric Administration on Wednesday. That’s the first time it’s passed that level in 4 million years (no, that’s not a typo).  Continue reading:  Antarctic CO2 Hit 400 PPM For First Time in 4 Million Years | Climate Central

The animation showing how carbon dioxide moves around the planet is worth watching:  NASA/YouTube

 

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4 thoughts on “Antarctic CO2 Hit 400 PPM For First Time in 4 Million Years | Climate Central

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