Friday, October 30, 2009

Solar Power Footprint


See it? That little black square in the middle of Saudi Arabia? It's 231 kilometres on a side, covering some fifty-three thousand square kilometres. That's the total area of solar panels needed to supply global electricity needs at its current rate of consumption, some 2 trillion Watts. Calculated by Professor Raymond Pierrehumbert of Chicago University, in an open letter that corrects global-warming denying innumeracy in Superfreakonomics.

(via Carl Zimmer)

1 Comments:

Blogger demonpack said...

nice! Great way to look at the situation.

November 20, 2009 5:04 AM  

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