It's the last weather station on earth to record C02 at 400 parts per million. It hasn't happened in 4 million years. It's happened now.
Hold onto your hats everyone on earth. We're now officially in for a very rough ride.
Don't worry about Earth, it'll be fine. It fixes itself as it's done for millennia. It'll just be the life on the planet that finds things particularly difficult in the process. You know, like the dinosaurs did....
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). Climate Central