In the suit, won on appeal, the groups claimed that the expansion would allow the company to process heavier grades of oil, increasing emissions and endangering the health of people. (scientificamerican.com)
In an interview with The Globe and Mail editorial board, David Collyer, president of the Canadian Association of Petroleum Producers, said the Keystone XL line is needed to connect the Alberta oil sands with refiners who have invested billions of dollar to upgrade their plants so that they can process heavy grades of crude. (theglobeandmail.com)
Moreover, many of them are designed to process heavy grades from Venezuela. (canadianbusiness.com)