Comments by "HKim0072" (@HKim0072) on "Catastrophic flooding forces rescues and evacuations in South Texas" video.
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@frankmartin8471 lol, right wing math. And, realistically the CO2 levels rising over a long period of time wouldn't be as disaster. The speed over a short period of time is the killer.
In May 2013, at the time of the usual annual maximum of CO2, the air briefly tipped over the 400 ppm mark for the first time in several million years. In 2014, it stayed above 400 ppm for the whole month of April. By 2015, the annual average was above 400 ppm.
To find a time when the planet’s air was consistently above 400 ppm you have to look much farther back to the warm part of the Miocene, some 16 million years ago, or the Early Oligocene, about 25 million years ago, when Earth was a very different place and its climate totally dissimilar from what we might expect today.
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