The longtime standard for constructing energy-efficient buildings - LEED certification - is no longer the only option in the "green"-construction business.
London has pledged to host the greenest Olympic Games ever staged, but it could take years before the promises start to flower.
China said Friday it had hooked its first so-called "fourth generation" nuclear reactor to the grid, a breakthrough that could eventually reduce its reliance on uranium imports
First the ground shook in Haiti, then Chile and now Turkey. The earthquakes keep coming hard and fast this year, causing people to wonder if something sinister is happening underfoot. It's not.