Arctic melting is intensifying, bringing environmental risks and reshaping the geopolitical landscape. In September 1846, the British expedition ships HMS Erebus and HMS Terror ran aground in the Canadian Arctic while sailing in the Northwest Passage, the shipping corridor between Europe and Asia. Finally frozen on all sides, the crew hoped to break free from the ice the following summer, but they did not budge a bit. Every crew member eventually perished. (Felipe Arango García, more at dialogue.earth)