Melting Arctic ice - dangerous American mess below!!!

The melting of Greenland’s ice cap is set to expose Camp Century, a US military base that hid a top-secret project along with its nuclear and other toxic waste. It was meant to be buried forever – entombed in ice.

But the rising temperatures mean that the cold war camp and its hazardous remains could be exposed within decades. Our Chief Correspondent Alex Thomson reports from western Greenland.