Conservationists say the proposed Trans Mountain Expansion project poses the greatest risk yet to a killer whale population on the edge of extinction

On one shore there are snow-capped mountains. On the other side loom towering skyscrapers. These churning waters off the coast of Vancouver are marked by a constant flow of ferries and containers ships – but they are also home to 80 or so orcas.

Known as the southern resident killer whales the group has long had a fraught relationship with the urban sprawl they live alongside, leaving them on the knife’s edge of extinction.

The approval of the project is also the approval of the extinction of the population. No one is disputing it

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One accident and the lives and livelihoods of hundreds of thousands of people would be destroyed forever

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