A friend of mine sent the following link to a video of John Doerr's absolutely moving talk about climate change from the TED conference.
Doerr and his colleagues at Kleiner Perkins expended a lot of CO2 investigating the climate change issue after his 15 year old daughter challenged him to do something about this problem our generation created. But what Doerr found in his travels gives him hope, despite the fact that he is afraid we can't make it. If you are not moved to action by this video, then you are not human.
A must see: Doerr on Climate Change