Should you believe in climate change?

[xoxoxoBruce]

Never doubted it was happening, just couldn't get good answers to, so what?
One side said it didn't matter, while the other side said the sky was falling. I knew neither was true, but I still don't know how far, how fast, what are the consequences, and can we do anything about it.
I know if all the polar bears die, that's a shame but it won't affect me very much. However, if the glaciers are gone that supply a quarter of the world's population with fresh water, that might.