The Guardian

'This is a really big deal': Canada natural gas emissions far worse than feared

Pioneering peer reviewed study measured methane emissions from oil and gas infrastructure in two regions in Alberta: ‘If we thought it was bad, it’s worse’
A large excavator loads a truck with oil sands at the Shell Albian mine near the town of Fort McMurray in Alberta on October 23, 2009. Greenpeace are calling for an end to oil sands mining in the region due to their greenhouse gas emissions and have recently staged sit-ins which briefly halted production at several mines. At an estimated 175 billion barrels, Alberta's oil sands are the second largest oil reserve in the world behind Saudi Arabia, but they were neglected for years, except by local companies, because of high extraction costs. Since 2000, skyrocketing crude oil prices and improved extraction methods have made exploitation more economical, and have lured several multinational oil companies to mine the sands. / MARK RALSTON / Getty Images

Alberta’s oil and gas industry – Canada’s largest producer of fossil fuel resources – could be emitting 25 to 50% more methane than previously believed, new research has suggested.

The pioneering peer reviewed study, , used airplane surveys to measure methane emissions from oil and gas infrastructure in two regions in Alberta. The results were then compared with industry-reported emissions more than 20 times as much as similar volumes of carbon dioxide.

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