So says this article linked by Drudge:

‘Five Years Left To Save The Planet’

The World Wide Fund for Nature (WWF) warns governments have until 2012 to “plant the seeds of change” and make positive moves to limit carbon emissions.

If they fail to do so, the WWF’s Vision For 2050 warns “generations to come will have to live with the compromises and hardships caused by their inability to act”.

“We have a small window of time in which we can plant the seeds of change, and that is the next five years,” James Leape, from the WWF, said.

“We cannot afford to waste them. This is not something that governments can put off until the future.”

Between now and 2050, the world’s energy needs are expected to double.

Source