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By Erik Kirschbaum BERLIN (Reuters) - It won't be easy to run a national railway on renewable energy like wind, hydro and solar power but that is what Germany's Deutsche Bahn aims to do for one simple reason: it's what consumers want. [More]

(PhysOrg.com) -- A dramatic and surprising magnetic effect of light discovered by University of Michigan researchers could lead to solar power without traditional semiconductor-based solar cells.

By Timothy Gardner WASHINGTON (Reuters) - The United States fell one spot to third place in clean-energy investment last year as the lack of a national energy policy hurt purchases in wind and solar power and other technologies, a report said on Tuesday.