A great talk from Alex Steffen – full of enthusiasm for all the positive things that are already happening through out the world to address the problems of sustainability – we are living as if we have 5 more planets than we have and that the way they are shared is extremely unfair.
http://www.ted.com/index.php/speakers/view/id/74
Solutions like a kids roundabout that pumps water
A landmine detecting flower
A computer game to teach you how to set up a refugee camp
A power cable that glows brighter the more energy you are using
Lots more on http://www.worldchanging.com
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