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Pollution controls have been made and installed for over 40 years. They typically remove at least 98%, and often 99.5% and more of the pollution that would have been emitted. Some emit so little that it is, at least at times, difficult to measure the emissions. They are enormously useful, successful, and valued.
Coal, oil and gas are called "fossil fuels" because they have been formed from the organic remains of prehistoric plants and animals.Coal is crushed to a fine dust and burnt.Oil and gas can be burnt directly.The steam that has passed through the power station's turbines has to be cooled, to condense it back into water before it can be pumped round again.
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Oct 10, 2019