Energy Consumption

http://en.wikipedia.org/wiki/World_energy_consumption

It is estimated that between 100 and 135 billion tonnes of oil has been consumed between 1850 and the present.

The United States Energy Information Administration regularly publishes a report on world consumption for most types of primary energy resources. According to IEA total world energy supply (consumption) was 102,569 TWh (1990); 117,687 TWh (2000); 133,602 TWh (2005) and 143,851 TWh (2008). World power generation (electricity) was 11,821 TWh (1990); 15,395 TWh (2000); 18,258 TWh (2005) and 20,181 TWh (2008). Compared to power supply 20,181 TWh the power end use was only 16,819 TWh in 2008 including EU27: 2 857 TWh, China 2 883 TWh and USA 4 533 TWh.

World annual coal production increased 1,905 Mt or 32% in 6 years in 2011 compared to 2005, of which over 70% was in China and 8% on India. Coal production was in 2011 7,783 Mt, and 2009 6,903 Mt, equal to 12.7% production increase in two years.

If production and consumption of coal continue at the rate as in 2008, proven and economically recoverable world reserves of coal would last for about 150 years.