, 4 tweets, 2 min read Read on Twitter
The most recent atmospheric CO2 reading is over 410 parts per million.

The last time humans experienced 410 ppm was... never. Never. Humans hadn't evolved yet.

Here's 800,000 years of CO2. We're over there on the far right. That line going straight up. #climatechange
And it's going up because of humans. As literally every national academy of sciences on the planet has concluded. #climatechange
Here's another version of the same data with current trend of human-caused change shown on the right and the full y-axis. #climatechange
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