The World's Resources Aren't Running Out - states Matt Ridley

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The World's Resources Aren't Running Out
Ecologists worry that the world's resources come in fixed amounts that will run out, but we have broken through such limits again and again - The contributor of this article, Matt Ridley, is the author of "The Rational Optimist" and a member of the British House of Lords.

Mr. Ridley's final question is:
How can innovation improve the environment?

Full article:
http://online.wsj.com/news/articles/SB10001424052702304279904579517862612287156

I would also like to pose this question here group-specific. Can water-related innovations improve the environment, and if so, how? What are examples?