Southern Resident killer whale J31 surfaces off Mitchell Bay, Washington at sunset. The Salish Sea is one of the richest and most biologically diverse inland seas in the world. This area of staggering beauty is home to some of the world's most iconic wildlife. Yet all of it is being put at risk by the expansion of the Trans Mountain pipeline which will lead to a seven fold in the number of tankers carrying tar sands oil through the Salish Sea and massively increasing the risks of an oil spill in this beautiful part of the world.