Some people are embracing the wave of increased natural gas extraction in the United States. Others, concerned about the risks, are saying no fracking way. A panel of experts weighs the pros and cons of a boom sparked by hydraulic fracturing in the latest Intelligence Squared U.S. debate.
Conversations about the environment can often be polarizing. Jonathan Foley, director of the University of Minnesota's Institute on the Environment, says that rather than rehash the same old debates, environmental issues need to be reframed.
Officials in Brainerd, Minn., say the sewers below the city streets are a huge potential source of energy that could be used for heating and cooling. A local company has devised a system to capture the energy, and city officials plan to hook up the police station by the end of the year.
How much of the recent hot weather can be attributed to global warming? Scientists will no doubt dig into the data and grapple with that question in the months to come. They have already taken a stab at that question regarding some of last year's extreme weather events, like the drought in Texas.
More than 800,000 gallons of crude oil gushed into wetlands and a creek in western Michigan in 2010 after a pipeline operated by the Canadian company Enbridge burst. Now, the National Transportation Safety Board says the company and the agency that regulates it are culpable.
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