Disused oil and gas wells wells a major source of methane

http://www.theecologist.org/News/news_round_up/2677596/disused_oil_and_gas_wells_wells_a_major_source_of_methane.html
Date Written:  2014-12-28
Publisher:  The Ecologist
Year Published:  2014
Resource Type:  Article
Cx Number:  CX17132

Long-disused oil and gas wells in the US have been found to be a 'significant' source of the super greenhouse gas methane. The climate impact of oil and gas is underestimated, as this long term impact is not included in existing calculations.