Bloke at Glastonbury got me to sign up - have a look at his site and sign teh petition if you agree with him; 

Let's Talk, Gordon is a new campaign urging the Prime Minister to make a televised address the the nation on climate change.  An address would send a strong message to the country about the challenge we all face and could be used to start a national debate about how we can work together to respond.  
The campaign aims to get 10,000 people to sign up an online petition supporting the idea of an address and then to launch a media campaign to make sure the message is heard.  To help us, please visit our website (www.letstalkgordon.org.uk) to sign the petition and then forward this email on to all your friends and family.

Cheers!