Grist: For the past four years, European Union officials have been mulling a labeling system that would require fuel companies to tell their customers how much carbon pollution is produced by each of the products they sell.
The idea is deeply unpopular with oil companies, which don`t want their customers thinking about such things every time they fill up their tanks. It`s also deeply unpopular with Canada. That`s because the country`s tar-sands oil is particularly dreadful for the climate, something...