I'm sure Tim Tyler is going to jump in and point out that even if you don't discount the future (etc.) as I recommend, you should still not worry much about the future because it is so hard to predict the consequences of your actions. Pace Tim. That is true, but beside the point!

Peace - I think that is what you meant to say. We mostly agree. I am not sure you can tell someone else what they "should" be doing, though. That is for them to decide. I expect your egoism is not of the evangelical kind.

Saving the planet does have some merits though. People's goals often conflict - but many people can endorse saving the planet. It is ecologically friendly, signals concern with Big Things, paints you as a Valiant Hero - and so on. As causes go, there are probably unhealthier ones to fall in with.