Global investment in renewable energy powered to record $257 billion in 2011, according to UN report

New figures from the Energy Information Administration show clean energy growth over the last decade

Small gains in energy efficiency can create huge savings. So why isn't everyone doing it?

2012 declared the International Year of Sustainable Energy for All

When supply outstrips demand, utilities look to consumers to help stabilize power grid

Interactive map shows the clean energy jobs of today and tomorrow

Kite-like flying wing prototype hits the sky

Economist Jeremy Rifkin makes the case for a decentralized clean energy economy

US biofuels, wind, solar, and hydro production on the rise

Deal with SolarCity is search giant's largest clean tech investment