There has been major debate over the construction of the Keystone XL pipeline, which would carry tar sands oil from Canada to the Gulf Coast. But that is just one of several pipelines in the works from Canada’s tar sands regions to ports on the Gulf, the Atlantic and the Pacific. InsideClimate News found that there are more than 10,000 miles of pipelines planned to send an additional 3.1 million barrels a day of Alberta’s oil to export markets, at a cost to build of almost $40 billion. Click on the map to see a larger version.