Oil sands pollution two to three times higher than thought

OH MY: Oil sands pollution two to three times higher than thought (Update) ~ <a href=http://phys.org/news/2014-02-oil-sands-emissions-g... ~ #oil #energy" title="OH MY: Oil sands pollution two to three times higher than thought (Update) ~ http://phys.org/news/2014-02-oil-sands-emissions-g... ~ #oil #energy" /> http://phys.org/news/2014-02-oil-sands-emissions-greatly-underestimated.html