A lotta little can add up to huge.

I calculated that, given that we already buy our energy from green sources (for 50 extra cents a month on our bill), use compact fluorescent light bulbs and don't own a car (we live in NYC), it only takes planting about 6 trees a year to offset my family's carbon foot print. Now I consider that a dubious figure, but if I can donate to plant about 20 trees a year or something like that, then I can feel like my family has done it's minimum effort to better the world. Is it enough? Alone it isn't. But it is part of what I can only hope are many efforts around the world that hopefully will add up.

If it doesn't, history and our descendents will not be kind to our memories.