Question 13 It is likely that more fossil fuel can be discovered if we look more carefully, and that more fossil fuel can be extracted if we develop new technolo price goes up. The total amount of fossil fuel that is likely to be available if we look harder, find new ways to extract, and pay more is estimated to to last: Thousands of years if everyone in the world uses fossil fuels at the modern rate of people in the USA. Tens of thousands of years if everyone in the world uses fossil fuels at the modern rate of people in the USA. O Hundreds of years at current use rates, and one hundred years or somewhat more if everyone uses at the USA rate. O Twelve years O Ten thousand years if use continues at current rates, and well over 1000 years if everyone begins using at the USA rate.