When industry began using NF3 in high-tech manufacturing, it was hailed as a way to fight global warming. But new research shows that this gas has 17,000 times the warming potential of carbon dioxide and is rapidly increasing in the atmosphere and that's turning an environmental success story into a public relations disaster.

Until now, geothermal technology has only been used on a small scale to produce power. But with major new projects now underway, deep geothermal systems may soon begin making a significant contribution to the world’s energy needs.

U.S. cities have been using green planning to spark economic development, helping create a real urban renaissance in America. With a new administration soon to arrive in Washington, these same approaches may finally start being used on a national scale.