Energy companies believe they can more than triple the production of tar sands oil, but one of the main constraints is delivery: unless the tar sands fields are linked by pipeline to more markets, there is a limit to how much they can grow.
That barrier could soon be removed. The United States is already the biggest consumer of tar sands oil, and to expand the supply, companies have decided to build a new $7 billion pipeline that will stretch 2,000 miles from Alberta to Texas. We need to resist the siren call of a pipeline that will prove dangerous to our health and environment.
Decisions about pipelines rarely attract a lot of attention, yet they should, because they open up lands for gas and oil development. And every time we expand our fossil fuel infrastructure, we lock ourselves into a string of costly and potentially dangerous consequences...
See: Senator Mike Johanns. "Keystone XL Pipeline - Issues"