Shale gas is reshaping America’s economy, environment and politics in still surprising ways. It was an unpredicted phenomenon, but shale gas, now more than a decade old, accounts for 40% of the natural gas in the US. The success of shale production, that has reached large areas of America where no gas development previously existed
So which energy source is winning the battle for market share around the world? Oil remains the world’s biggest energy source, but coal is closing the gap and could become the world’s top fuel. last year, coal reached its highest market share of the world’s energy in more than 40 years. China, the second biggest and fastest growing economy, gets 70% of its total energy from coal and just 5% from natural gas. Only in America is coal struggling, because the shale gas revolution has displaced it.