Interesting aside to the environmental issue: I was watching on NatGeo or BBC or some such network a documentary about polar bears.

This one population has adapted to a new food source, since the lack of sea ice is preventing them from hunting seals.

They hunt Beluga whales. They stand on a rock nearly or barely covered by the sea, and wait for a whale to swim close, then they pounce. I think in a few years, Beluga will be their "natural" food source.

No word on how the seals are doing in the absence of being hunted by bears. I presume better.

But I think the lesson is the same as it was 10,000 years ago, when we were warming from an Ice Age - adapt or die. That is why we have caribou but no woolly mammoths. Ostriches but no saber toothed cats.

Yes, if I could keep the world from changing I would. I don't like change. But it is happening, no matter what we in the US do. For us, as well as polar bears, it is adapt or die.