"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.
In the late 1960s and early 70s, dozens were captured and sold to aquariums and theme parks around the world. Those who remained were exposed to runoff chemicals used in local industry, making them some of the world’s most contaminated marine mammals.
But now the orcas of the Salish sea face what conservationists say is their biggest threat to date: an expansion proposal for a pipeline that would snake from Alberta to the Pacific coast.
Spearheaded by Texas-based energy infrastructure company Kinder Morgan, the C$6.8bn ($5bn) Trans Mountain Expansion project is designed to transport Alberta’s landlocked bitumen to international markets."