Response re. global warming

I just read a newspaper article in which several 20-somethings were asked about global warming. Anna, 20, in Ottawa (with picture of her standing on a sidewalk somewhere, perfectly outfitted in a jacket and low-rise jeans, holding a can of Pepsi):

Dose: Can we stop global warming?
Anna: We can try to stop it but I think it's probably too late. It's impossible.
Dose: Does that worry you?
Anna: It does. We're not going to be able to do things like skiing and snowboarding in the future.