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.
En 2007, usamos 5000 millones de toneladas de carbón, 31 000 millones de barriles de petróleo, 5 billones de m3 de gas natural y 65 000 toneladas de uranio para abastecer el consumo mundial de energía.