New study suggests oilsands greenhouse gas emissions underestimated
(WorldNews Canada)

New federal research suggests greenhouse gas emissions from Alberta’s oilsands may be significantly higher than industry reports. In a study published Tuesday, Environment Canada scientists say four major oilsands mines are releasing an average of about one-third more carbon dioxide per barrel of oil than they report — a crucial number used for everything from determining national emissions levels to calculating carbon tax. Lead author John Liggio and his colleagues analyzed air monitoring samples captured in a series of flights above the four sites during...