OK. Throw out the source. I've seen the same info elsewhere, though. I can find some other sites for you if you don't feel like doing it yourself.
The actual communicative intent of my post remains: historically, CO2 levels and temperatures have been dramatically higher and lower than present time. Repeatedly. Nevertheless, life continues to thrive. The sky is not falling.
It's taking a lot of effort to undo the brainwashing of our younger generation.