Numbers Don't Lie: 71 Things You Need to Know About the World

by Vaclav Smil

In contrast, several key economic sectors depend heavily on fossil fuels and we do not have any non-carbon alternatives that could replace them rapidly and on the requisite massive scales. These sectors include long-distance transportation (now almost totally reliant on aviation kerosene for jetliners, and diesel, bunker fuel, and liquefied natural gas for container, bulk, and tanker vessels); the production of more than a billion tons of primary iron (requiring coke made from coal for smelting iron ores in blast furnaces) and more than 4 billion tons of cement (made in massive rotating kilns fired by low-quality fossil fuels); the synthesis of nearly 200 million tons of ammonia and some 300 million tons of plastics (starting with compounds derived from natural gas and crude oil); and space heating (now dominated by natural gas).