Caring and worrying are two different things, aren't they?
I do care, but I'm not sure if I'm really worried. I do what I can (to satisfy my own conscience) but I believe that evolution will roll on regardless - and our actions are a part of that.
I care for the future generations & trying to do my bit.
Cycle everywhere.
No foreign holidays.
Buy locally produced wherever poss.
Try & grow as much of my own food.
But Mother Nature will reign a long time after man has left this planet,
so I care but I'm not worried.