How Long Will Fossil Fuels Last?

Estimates of the amount of time that fossil fuels, oil, coal and gas, may last differs based upon estimates of remaining reserves and the predicted rate of usage. The estimates change over time as new reserves are discovered and green technologies lower fossil fuel usage.

The British green energy supplier Ecotricity estimates that as of 2014, the planet may exhaust reserves of oil in 2052, gas in 2060 and coal in 2088. Also as of 2014, the BBC estimates that reserves may last longer, with oil reserves used up in 2074, gas reserves lasting until 2084 and coal reserves available until 2274.