Europe will be Russia's hostage over gas supplies for at least another decade

``Fitch said a lack of alternative sources meant policymakers would have no choice but to continue buying gas from Russia until at least the mid-2020s and "potentially much longer". Europe already buys a quarter of its gas from Russia, and analysts expect consumption to increase by a third by 2030 as economies recover from the debt crisis and gas-fired electricity generation replaces old coal and nuclear power. ''