Aug 15 - Coal is used to produce 40 percent of the world's electricty, most of its steel and the cement in its buildings and shows no sign of losing popularity. It is made of old organic matter which ...
LAUNCESTON, Australia, June 30 (Reuters) - For decades, coal was the bedrock of Australia's commodity exports before it lost its top status to iron ore as shipments of the steel raw material to China ...
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