Yale Environment 360: The Alberta tar sands industry -- and the governments that depend on tar sands tax revenues -- are facing an increasingly pressing problem: How to get the growing flow of oil sands bitumen to market. And with proposed pipelines to the south, east, and west facing stiff opposition, tar sands interests are now investigating another controversial option -- heading north and shipping their product via the Arctic.
To the south, the proposed $10 billion Keystone XL pipeline, which would transport Alberta...