Economics of the International Coal Trade: The Renaissance of Steam Coal by Lars Schernikau
English | PDF | 2010 | 257 Pages | ISBN : 9048192390 | 7.2 MB
The world today depends on oil, coal and gas (in that order of importance) for over 80% of its primary energy. From the time humans tamed fire, wood or bio-mass became the primary energy source. Coal took over from biomass during the Industrial Revolution and accounted for over 60% of world primary energy by the early 1900s.