I'll tell you floods, tornadoes, fire etc all those bad things as well as the sea rising and all the polar bears etc and the rainforest getting destroyed so basically global warming is the end of the world and the end of the world will happen one day even if you recycle one million bottles.

BBC: Last Updated: Thursday May 08 2008 11:40 GMT

But after a day of being urged to recycle, turn off lights and trade in our cars for bikes, the question that everybody is asking is will it make a difference?

BBC: Snoop Dogg

But what's novel about the CEAC design is that it incorporates a bio-regenerative life-support system -- the kind of technology that could one day not only feed an outpost on the moon or Mars, but also provide it with oxygen and recycle its water.

CNN: To boldly grow where no one has grown before