Ah i see.
Sadly it seems that learning from experience always seem to be connected with suffering.
At least i hope they will be some survivors who learn from what happens.
Earth history is surely not heading towards its first catastrophe, whether it be global warming, or as i believe it is those who use "global warming" for their own greedy purposes like taxes, and i am sure that before the previous catastrophes many did try to warn, but they happened anyway.
//
This may seem pessimistic but this is the life we live and the world we live in. Gradual changes are a part of the human existance it seems.