I was talking to my little (13 year old) sister today about consumerism and Epicurus and how attachments lead to suffering in the Buddhist context. She's quite mature for her age and is always open to learning more about life, but what surprised me was she already knew what Carbon Offsetting is!
Now when I was her age, a) there was no such thing as a carbon footprint and b) if there was I wouldn't have had a clue what you were talking about.
So we sat down together and watched 'The Story of Stuff'...
My point is... it's the future generations we need to teach, because they do care. They are the ones who will change, for the better. We just need to support them and teach them by example.
There is hope.