Natural Gas is the world’s fastest-growing type of energy. Its use, according to many sources such as the Wall Street Journal, is predicted to at least double between 2000 and 2020. Many factors contribute to this surge in demand. First of all, population growth is a factor – more people equal the need for more energy. Oil, although still plentiful, is getting harder to recover. With environmental concerns rising all over the world, clean-burning natural gas is seen in a more positive light than coal, oil, or nuclear power. Many countries that previously had little or no modern infrastructure are now developing it. All of these factors add up to a vastly increased demand for natural gas, and the unfortunate possibility of an equivalent price rise. Current natural gas reserves for the entire planet are estimated at 6,100 trillion cubic feet (tcf), according to EIA estimates. Of these reserves, at least half are considered stranded.