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Whether you're a homeowner who bought an energy-saving refrigerator last year or a company hoping to build a wind farm, the tax package Congress just approved may give you a reason to cheer.

At its closest approach, the office building-sized asteroid will be only about 17,200 miles above the surface of our planet. Some people think this near miss should serve as a wake-up call.

After deadly disasters in clothing factories, labor activists are trying to persuade at least two more retailers to agree to improve working conditions in Bangladesh. Two retail giants have already signed onto a proposal that would mandate that fire and safety inspections be made public and require retailers to pay for needed factory repairs.

Joysticks in hand, participants played what was perhaps the world's biggest video game on the side of the 29-story Cira Centre in Philadelphia. The interactive light display kicked off a week of events for the annual celebration of the local tech scene.

Author and adventurer James Campbell and his 15-year-old daughter are spending the summer 130 miles above the Arctic Circle building a cabin. Guest host Linda Wertheimer reached them by satellite phone.

Warner Robins, Ga., is a booming community that is entirely dependent on civilian Defense Department employment. The local Air Force Base is massive, but because it's mostly a logistics depot, the bulk of the employees are not service members.

EarthTalk®E - The Environmental MagazineDear EarthTalk: Has anyone calculated the energy wasted at night by unnecessary lighting in and around buildings?…

Reducing carbon dioxide emissions is tough if you don't know exactly where those gases are coming from. Scientists at Arizona State University have invented a new way to pinpoint those sources — down to individual buildings and highways.

A growing number of companies hope more consumers will soon be making purchases with mobile phones. More retailers are also using technology that turns devices like tablets into cash registers.

The U.S. Air Force is investigating what happened to the X-51 Waverider aircraft that fell into the Pacific last week. The X-51 is part of an Air Force/DARPA research project trying to build a "scramjet" engine that will work at hypersonic speeds. NPR's Larry Abramson reports.