So we're on the same page D, I'm not either (talking about one or two events).
The climate does change, sometimes rather suddenly, with catastrophic consequences. We've been pretty lucky the few hundred years all things considered.
And geological events as well. One thing I can think of, they believe there is a super volcano awaiting under Yellowstone, that has erupted before. And the whole CA thing. NO was bad, but not violent. Wait till a major city gets wiped out.
Anyway even assuming the humans-did-it crowd is correct (although they have no proof), it took all of human endeavour to do it accidently. There is no way to reverse it, we're talking terraforming on a scale beyond anything conceived before, beyond most folks comprehension. Probably beyond our ability into the forseeable future. And consider that China is bringing a new coal fired power plant online
every week.
My take, if the sea level is going to rise, it's time to move to higher ground.
(where's the blah blah blah smiley when you need it?
)
Pete