In 2007, we used five billion tons of coal, 31 billion barrels of oil and five trillion cubic meters of natural gas, along with 65,000 tons of uranium to produce the world's energy.
i 2007 brugte hele verden 5 milliarder tons kul, 31 milliarder tønder olie, 5 billioner kubikmeter naturgas, og 65.000 tons uran til at dække behovet for energi.