Arang Batu

 Mining for coal is one of the world's most dangerous jobs. While deadliest in China, where thousands of miners die annually, the profession is still hazardous in the West and other regions as well. Our mining and use of coal accounts for a variety of environmental hazards, including the production of more CO2 than any other source. Over 40% of the world's electricity is generated by burning coal, more than from any other source. Chances are that a significant percentage of the electricity.