Wow we are going crazy with this green thing. Al Gore may not have become prez but he still controls the world. It's funny to me that environmentalists barely knew what a carbon footprint was five years ago. Now you can ask any pre-schooler and they know. With all that said (more for comedy then anything else) I'm glad we are seeing potential in seemingly insignificant things. I just hope we can figure out the whole cold fusion thing, might as well throw in some perpetual motion for good measure. Go Human Brain!!!

As long as the environmental impact of producing the materials is lower than the benefit.
Ie with wind turbines the concrete used to keep them in the ground isn't very environmental to produce.

this was theorised years ago in japan by a budding scientist. she speculated on the the power of people's steps on the famous crosswalks in shinjuku and shibuya. still not realised however...

Could be useful for DDR!

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