• A new University of Waterloo report warns that natural gas seeping from 500,000 wellbores represent "a threat to environment and public safety" due to groundwater contamination, greenhouse gas emissions and explosion risks wherever methane collects in unvented buildings and spaces. http://www.thetyee.ca/news/2014/06/05/canada-leaky-energy-wells/ 13 comments 5/6/2014 worldnews

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