Gov. Bill Ritter signed three bills Friday to promote renewable energy. One bill creates a loan program to help schools pay for renewable energy projects and electric or hybrid buses so they can sa
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Global wind capacity grew by 29 percent in 2008 with the United States surpassing Germany to become the world’s leading wind power generator, Worldwatch Institute said.

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NASA is running out of nuclear fuel needed for its deep space exploration. The end of the Cold War’s nuclear weapons buildup means that the U.S. space agency does not have enough plutonium for futu
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