by Sören BILLING COPENHAGEN Denmark (AFP) — A snow-covered former US army base in Greenland — dubbed “a city under ice” — could leak pollutants into the environment as the climate changes, raising difficult questions over who is responsible for a clean-up. In 1959, US army engineers began constructing a futuristic project in northwestern Greenland that might as well have been lifted from a Cold War spy movie. A network of tunnels under the snow contained everything […]