Canadian Press: Environmental groups are hailing celebrating a decision by oil and gas giant Enbridge Inc. (TSX:ENB) to shelve its $346-million “Trailbreaker” pipeline expansion. They say the pipeline would have increased dependence on oil from the tar sands, which they describe as the “most destructive project on earth.” The group of assorted environmental activists says in a statement the decision gives central Canadian provinces time to pursue alternative energy strategies that are less …