Masse de pétrole

The world at present consumes about 4.17 cubic Km of oil per year. To obtain in one year the amount of energy contained in 4.14 cubic Km of oil, each year for 50 years we would need to have produced the numbers of dams, nuclear power plants, coal plants, windmills, or solar panels shown here.

IEEE Spectrum
Joules, BTUs, Quads—Let's Call the Whole Thing Off