The biggest ever study of Arctic pollutants paints a picture of an ecosystem under siege—with potentially grave consequences for denizens of Earth’s northernmost reaches.

Russia’s zapovedniks are some of the world’s most pristine wildernesses. For 70 years they were protected ruthlessly by the Soviet system, but recently they have fallen prey to Putin, the World Bank, …

U.S.-origin spent nuclear fuel – otherwise known as nuclear waste – has been piling up around the world waiting for a country willing to take it. Russian nuclear agency MINATOM …