Coal comes clean [thermal power stations]

Coal-fired power stations provide some 40% of the world's electricity, making coal the prime fossil fuel for power generation. In 1989, world coal-fired capacity for electricity generation was over 800 GW, equivalent to an annual consumption of 1950 Mt. Here, however, the author details how coal's status as the dominant fuel for electricity generation is under threat, and describes, how, the coal industry is responding with a range of cleaner and more efficient combustion technologies