It is common knowledge that coal usage is increasing as globalization reaches developing nations. In the US, the EPA has helped to veto a bill calling for more mountain top removal. The removal adds to air and water pollution as well as ruining the beauty of the land. In the UK the economy is, too, dependent on the production and usage of coal for such items as iron and steel. The problem is found when the majority of coal is taken from the surface, the amount of energy required to access it makes the equation of "energy-return-on-investment (EROI)" decline. As coal continues to become harder to mine, sustainable alternatives are much needed and desired.