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.
November 2, 2012 Interactive images show the New Jersey coast before and after Sandy.
November 1, 2012 The Bloom family has been raising oysters for three generations now on 2,000 underwater acres of oysters in Long Island Sound. On Wednesday, two days after the storm, the Blooms were finally able to get out on the water to assess the damage, and they found a lot of it.