Energy at the Crossroads
Energy at the Crossroads: Global Perspectives and Uncertainties by Vaclav Smil Main Points: " It is the mark of an instructed mind to rest satisfied with the degree of precision which the nature of the subject permits and not to seek an exactness where only an approximation of the truth is possible."- Aristotle Basic unit of energy is a joule. B est p rocessed coal is something called anthracite . 1 kilogram of anthracite is 30 Megajoules. 1 kilogram of oil is 42 Megajoule. 1 kilogram of wood is 15 Megajoules. Whole world needs 400 Exojoules . So this is a conversation on scale. Understanding Energy Trends : Fossil Fuels The twentieth century was marked by consumption of coal due to production of metallurgical coke and generation of electricity. Fossil fuel consumption grew and matched biomass fuel consumption in 1900 Global population quadrupled from 1900 to 2000 (1.6 to 6.1 billion) while average annual per capita energy more than quadrupled f