Well, considering humanity is going to be the cause of this planet becoming uninhabitable...

I think this is what gets me the most. People want to drive. People want to constantly upgrade all their devices and tech toys. There isn't enough recycling in place.

Polar bears may soon become extinct from global warming.

To me the big picture is bleak...and so often people are inconsiderate and selfish.

But to focus on it is madness. Self-preservation dictates that I focus on the good...I guess, selfish altruism, too.