Thanks Apeman! How could I forget?
BTW, saw an episode of Nova: Polar Extremes (NOVA | Polar Extremes | Season 47 | Episode 1 | KQED) which included a segment on climate change. In the last 500 million years ago, it is more common to have a warm climate than a cool climate. Humans have only existed, in any form, during a cooling period. We haven’t been around for a warming period.
So, tell me, my mockers, if we’ve only been around for this “warming” period…what caused all the others?