Coal, propelled by rising use in China and India, will surpass oil as the key fuel for the global economy by 2020 despite government efforts to reduce carbon emissions, energy consultancy firm Wood Mackenzie said on Monday. Global coal consumption is expected to rise by 25 percent by the end of the decade to 4,500 million tons of oil equivalent, overtaking oil at 4,400 million tons, according to Woodmac in a presentation at the World Energy Congress. The two Asian powerhouses will need the comparatively cheaper fuel to power their economies, while demand in the United States, Europe and the...