In the fight against global warming, some of Hollywood's brightest stars have been setting a shining example by actively championing environmental causes.
Click on the thumbnails below to reveal the famous face behind, and find out how the stars have been using their wealth to help save the world. Find out more at http://www.grist.org/.
A geographical look at global warming hotspots across the earth, with Windows Live Maps.
More on the environment from MSN
Natural wonders feel the heat
From fragile coral reefs to indigenous peoples, some of the world's most spectacular natural wonders are feeling the heat of climate change - with potentially catastrophic results.
The climate and your region
Find out how the effects of our changing climate will manifest themselves where you live as global warming tightens its grip.
Latest headlines
- Second body found at house
- Man admits Tesco blackmail campaign
- Friend 'saw man with Madeleine'
- Millions of training places for UK
- Survey reveals under-age drinking
- Attacks down after Basra pull-out
- Turkeys test negative for bird flu
- Immediate floods action plan urged
- Murder accused 'in plea over ashes'
- D-day for Rock survival bid
