This is a very valid concern that absolutely must be considered, and clearly was not so considered previously.  The resident orca population is in significant decline, due to over fishing and increasing ship traffic.  Only last week the federal government announced new regulations for ship traffic in the St Lawrence in an attempt to help the declining beluga whale population there.  So it is a very valid concern.  The so-called "approval" by former Premier Christy Clark was in response to just under 1 million in "donations" from Kinder Morgan representatives.  And PM Trudeau's "approval" was clearly a pander to the suffering oil industry and hoping to retain Alberta Liberal voters.  Canada is being left behind as other countries move forward with alternative energy that could increase our economy far more than these attempts to bail out a dying fossil fuel industry.  Canada is becoming the fossil.