GEOFF TOMPKINSON / SCIENCE PHOTO LIBRARY GEOFF TOMPKINSON / SCIENCE PHOTO LIBRARY
Air pollution. Abstract depiction of air pollution superimposed on a soap bubble representing the earth. Shown within the soap bubble are plumes from power station chimneys. Power stations using fossil fuel emit carbon dioxide, sulphur dioxide and particulate matter. Carbon dioxide causes global warming, sulphur dioxide causes acid rain and particulate matter causes asthma and other breathing problems. Discharges of sulphur dioxide and particulate matter can be reduced by using filters.
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