November 16, 2010 — Taken as a whole, energy sources with low or no carbon emissions could easily cover the global energy supply in 2050, according to a new Danish report. The challenge for a sustainable global energy ... > full story

November 9, 2010 — Using wind energy where the wind blows strongest makes perfect sense as long as the energy can be readily transported to where it is needed. The first offshore plants are already being erected, and ... > full story

November 1, 2010 — It's not hard to argue in favor of alternatives to fossil fuels these days, but one popular argument -- domestic energy security -- may be standing on very shaky legs. A lot of rare metals are needed ... > full story

October 28, 2010 — Conventional solar cells made from crystalline silicon are difficult and energy-intensive to manufacture. Organic solar cells are cheaper, but have always produced less electricity. Why this is so ... > full story