Shale gas - Transitional energy option?

The popularity of coal is rapidly declining in United States, and the main reason for this latest trend has been natural gas, or to be more precise recent shale gas discoveries that have driven down natural gas prices. And although United States is now burning less coal due to increased shale gas production, millions of tonnes of unused coal are still being exported to other areas of the world,

Posted in: natural gas,non-renewable energy