Natural Gas: Hidden Climate Threat (and Opportunity)

About This Video:  Methane, the main ingredient in natural gas, is escaping in vast volumes from oil and gas fields in the United States, Russia and other countries. The fracking rush in shale-gas country has amplified the threat. Some companies have found that investments in capturing the emissions quickly pay off in sales of the fuel. More at:
http://dotearth.blogs.nytimes.com/tag/gas
http://www.epa.gov/gasstar
http://www.methanetomarkets.org

Natural Gas: Hidden Climate Threat (and Opportunity)