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Oil equivalent (millions of metric tons)<br />
3,500<br />
3,000<br />
Oil<br />
2,500<br />
2,000<br />
Coal<br />
1,500<br />
1,000<br />
500<br />
Natural gas<br />
~2% increase/yr<br />
(cleanest and least<br />
climate disturbing<br />
fuel)<br />
0<br />
1950 1960 1970 1980 1990 2000 2010<br />
Year<br />
Global consumption of fossil fuels<br />
Use of oil continues to climb by 1% per year because:<br />
low price (bolstered by huge government subsidies)<br />
ease of use as a motor vehicle fuel
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