A surge in investment in solar power is bringing down costs of the alternative energy source, but affordability problems still dog hopes for the 1.6 billion people worldwide without electricity.

Clean Cities coalitions around the nation displaced the equivalent of 375 million gallons of gasoline in 2006, according to a recent report from the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL). The amount of gasoline displaced in 2006 was 50 percent more than the 250 million gallons in 2005.

Today’s delivery of five GM-Allison hybrid-powered buses to Metro Transit is an important step in fulfilling Madison Mayor Dave Cieslewicz’s commitment to the 100K Clean Energy Challenge. As part of the announcement made in April, the mayor committed to increasing fuel efficiency in the city’s fleet by pursuing the use of hybrid diesel-electric buses.

When it comes to producing earth-friendly solar energy, pink may be the new green, according to Ohio State University researchers.

As the world searches for ways to produce energy without burning fossil fuel, there is increased interest in solar energy. One place associated with solar power experiments is the Sandia National Laboratories near Albuquerque, New Mexico.

Iran is to construct three wind-based power plants in Armenia.

A Cardiff University research collaboration is working to recycle precious metals from road dusts and vehicle exhausts to create greener energy.

Leading CEOs from the largest corporations in the energy sector called on June 4th for the establishment of a global carbon market as a way to spur innovation, clean energy development, and the additional investments needed to steadily move to a global lower carbon economy.

As long as there are people on the planet, there will be garbage. The rubbish often piles up in landfills that produce a harmful greenhouse gas called methane. VOA's Stephanie Ho reports solid waste managers have been working to turn this methane into something good -- namely, clean energy.

Before destroying another landscape, natural habitat, community, or human life, we need to seriously assess the claims made to promote and defend industrial wind energy development.

Tiffany & Co., one of the world's premier jewelers, today marked the addition of clean, emissions-free, renewable solar power to its energy portfolio with the dedication of one of the East Coast's largest commercial solar projects

Controlling the properties and behavior of matter at the smallest scale-in effect, "domesticating atoms"-can help to overcome some of the world's biggest challenges, concludes a new report on how diverse experts view the future of nanotechnology.