air pollution; biofuels; electric power generation; energy; energy consumption; energy policy; energy prices; energy supply; environment; environmental degradation; fossil fuels; hydropower; information sources; non-renewable energy; nuclear energy; radioactive wastes; renewable energy; wind energy
biofuels; climate change; electric power generation; energy; energy consumption; energy policy; energy prices; energy supply; environment; environmental degradation; fossil fuels; hydropower; information sources; non-renewable energy; nuclear energy; peat; radioactive wastes; renewable energy ...