Gas has been a part of the energy “landscape since the Industrial Revolution, but what's new and changing is the role it's playing in the global energy mix. Gas will be a defining energy trend over the next 15 years, rivaling coal and oil, while shifting from a regional and often marginal fuel to become a focal point of global energy supply and demand. GE's 'Age of Gas' outlook projects total world gas demand reaching approximately 4,800 billion m3 by 2025, which is 40% more than is produced and consumed today.