Latest Chip Cunliffe Stories

Three British explorers trekking to the North Pole to assess how fast the Arctic ice sheets are melting said they were astonished at how little permanent ice they have discovered.The team began their 620-mile walk from Canada's Arctic to the North Pole in early March, and had set down in an area scientists were sure would contain permanent multiyear ice.But so far, the average depth of the ice has been slightly less than 6 feet, indicating the team was finding mainly first year ice that will...