November 15, 2012 Eleven people were killed and one of the largest environmental disasters in history happened after an oil rig in the Gulf of Mexico exploded in 2010.
November 14, 2012 California starts the ball rolling Wednesday on a controversial scheme to keep the planet from overheating: Businesses will have to get a permit if they emit greenhouse gases. And one California company is hoping to get in on the ground level, by turning trash into biomass energy.
November 12, 2012 Among the difficult decisions facing President Obama in his second term is whether to give the go-ahead for the controversial Keystone XL oil pipeline. Environmentalists want it blocked, while advocates of the project say it will create thousands of jobs and make the country more energy independent.
November 9, 2012 Urban farming goes vertical, as Singapore opens a 30-feet tall greenhouse for bok choy and cabbage. The farm is already producing half a ton of veggies per day for local supermarkets. But are these vertical "farmscrapers" any more efficient than traditional, flat greenhouses?
November 6, 2012 Norfolk, Va., has spent decades — and millions of dollars — raising houses and building barriers to successfully hold back the sea. Expanding such efforts to other vulnerable coastal areas, such as New York and New Jersey, could work, but costs could reach the billions.