Montreal Gazette: The proposed Keystone XL pipeline to connect Canadian oilsands with U.S. refineries and ports could have a much larger impact on greenhouse gas emissions than previously assumed, according to a new study.
If the controversial pipeline gets the go-ahead it might lower global oil prices, increase consumption and quadruple the total greenhouse gas impact of the project, says an analysis published Sunday in the journal Nature Climate Change.
It also points to gaps in existing environmental and...