This story was originally published by the Guardian and is reproduced here as part of the Climate Desk collaboration.

On April 13, coast guard officials from the U.S. and Canada will train for a cruise ship catastrophe: a mass rescue from a luxury liner on its maiden voyage through the remote and deathly cold waters between the Northwest Passage and the Bering Strait.

The prospect of just such a disaster occurring amid the uncharted waters and capricious weather of the Arctic is becoming all too real.