What are the major sources of carbon dioxide?
Most man-made carbon emissions come from burning fossil fuels for energy. In the UK, the biggest emitters are from transport and the domestic sectors, of which aviation is the fastest growing. Because of their varying chemical constituents, different fossil fuels produce different amounts of carbon dioxide. Coal produces most, then oil, and then gas. Which country produces most carbon? The US emits the most: 5,800 million tonnes every year. Next is China, over 3,000; Russia, over 2,000; Japan, 1,200; and India, 1,000 million tonnes. Other major emitters are Germany, 800; Canada, 600m; the UK, 500m; and Italy, 47m.
