The United States refuses to clean up its tracks under the old treaty's wording, which states that the territories do not have to be returned to their former state.
The United States refuses to clean up its tracks under the old treaty's wording, which states that the territories do not have to be returned to their former state.
Under the Greenland ice cap lies Camp Century, an underground town secretly built by the U.S. Army during the Cold War. Abandoned in 1967 without being cleaned, this military base contains tens of thousands of litres of fuel, radioactive water and PCBs that could resurface with global warming. More