Fight to stop controversial Canadian pipeline gets fresh backing in BC

• Pact between leftwing NDP and Greens could force showdown with Trudeau
• Critics say pipeline proposal raises chances of catastrophic spill in Salish Sea

An alliance between opposition parties in British Columbia has offered new hope to opponents of a contentious Canadian pipeline expansion, and raises the prospect of a confrontation with Justin Trudeau, who has thrown his support behind the project.

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