Canada on Wednesday renewed its attack on the European Union's plan to classify Canadian tar sands oil as particularly dirty and released a study questioning the data behind the controversial measure.
Canada has the world's third-largest proven reserves of crude, much of which is locked in the tar sands of Alberta. Extracting the oil requires more energy than conventional production, a fact regularly highlighted by environmental campaigners.
The EU is working on a Fuel Quality Directive (FQD) to cut emissions of greenhouse gases from the transport sector. The directive singles out the tar sands, a move Canada fears could set a bad precedent and hit crucial energy exports.
Natural Resources Minister Joe Oliver on Wednesday released a study - commissioned by Canada's right-leaning Conservative government - that claims the EU directive relied on weak data.
"The FQD implementation measures, as currently drafted, are unscientific and ...