New oil and gas drilling in the Arctic ocean off the coast of Siberia could be powered by floating nuclear power plants, according to Russia's nuclear energy agency, and off-shore plants may also be built to provide energy for remote towns and military outposts. The Russian nuclear agency has reportedly signed a deal to build four plants for towns in the far northern Siberian Republic of Yakutiya, and is currently constructing its first floating nuclear plant for a defense facility by the White Sea. But environmental groups are most alarmed at the prospect of using the portable plants to power oil and gas drilling.