He blogs on energy, environment, and oilsands issues at http://www.andrewleach.ca and is on Twitter @andrew_leach .In response to the recent difficulties encountered by both TransCanada and Enbridge with respect to getting approval for their pipeline projects to move oil from Alberta to the Gulf of Mexico and Kitimat respectively, oil producers have begun to look at alternatives. Just last week, Cenovus announced a deal to transport oil by rail to market.