North American Scientists Call for End to Tar Sands Mining

More than 100 US and Canadian scientists published a letter on Wednesday saying tar sands crude should be relegated to fuel of last resort, because it causes so much pollution. More than 100 leading US and Canadian scientists called for a halt on future mining of the tar sands, saying extraction of the carbon-heavy fuel was incompatible with fighting climate change. According to the researchers tar sands crude causes much more carbon pollution than conventional oil.



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