*NATIONAL BESTSELLER* "An optimistic book that looks at existing technologies and how they can be used now to address the environmental emergency." --Vancouver Sun Saving our planet is not only possible--it's possible now. Look around you. Everything that powers up, gets warm, or moves uses energy. All we have to do is gather it up and put it to work. And that's the good news: we already have the technology we need to capture the free energy of the...