We are not powerless. Our generation is the first with the knowledge, skills and technology to prevent catastrophic climate change - but the last that can do so. It is up to us to decide if we have a future or not.

Before you do anything else, if you haven't already, get yourself over to the 10:10 website and sign up. Don't know what 10:10 is? Get yourself over to the website!

You could also do the things at the bottom of this page: send a certificate to someone Stupid (or Not Stupid if you're feeling positive); pledge to stop dirty coal in the UK; and help Piers out in his battle against the NIMBYs of Middle England.

Finished? OK, now pick one of the five options on the right...

Get some inspiration: see some of the stuff other people have been up to here.