May 30, 2013 The Standard Heights neighborhood sits next to the nation's second-largest gasoline refinery. Recently, residents learned a new truth about the plumes of exhaust they see every day: Exxon Mobil's aging refinery and petrochemical facilities — like many others — are pumping out far more pollution than the law allows.
May 10, 2013 Taking a page from the playbook of decades past, college students are once again pressuring schools to pull investment funding from specific sectors. This time it's big oil and coal companies. But these campaigns have effects beyond the university — they're launching a new generation of activists.
April 24, 2013 Up until now, the U.S. has had the same rules for all oil pipelines. But the EPA says pipelines that carry tar sands oil, like the proposed Keystone XL pipeline, should have special standards. That's because tar sands oil spills can release harmful air pollution and are vastly more difficult to clean up than conventional oil spills.
April 4, 2013 More than half of the nation's pipelines were built before 1970. In fact, ExxonMobil's Pegasus pipeline, which burst Friday in Mayflower, Ark., is 65 years old. According to federal statistics, pipelines have on average 280 significant spills a year. Most aren't big enough to make headlines.
March 21, 2013 Four major drilling companies, including Shell and Chevron, and several environmental groups have agreed on 15 voluntary standards for cleaner drilling practices in the Appalachian Basin. But some environmental groups are skeptical about the effort because the standards are voluntary.
February 18, 2013 Tens of thousands of protesters turned out on the National Mall Sunday to encourage President Obama to make good on his commitment to act on climate change. The pipeline would carry tar sands oil from Alberta, Canada, to refineries on the coast of the Gulf of Mexico.
January 22, 2013 President Obama pulled out a surprise in his inaugural address. After barely mentioning climate change in his campaign, he put it on his short list of priorities for his second term. Experts believe he'll use the EPA to ramp up efforts to reduce greenhouse gases from power plants.
January 17, 2013 Some of the most beloved nature writers of all time, Henry David Thoreau and Aldo Leopold, are helping scientists learn how global warming will affect spring. Using historical records, the scientists are able to predict when flowers will bloom during especially hot years.