The top three Energy Sources are ( a ) Petroleum ( b ) Natural gas ( c ) Coal. Each of these are fossil fuels which once consumed cannot be reused. Due to this reason the fear of scarcity is looming large and the price of these Energy sources are skyrocketing, which in turn is making the production process costlier and squeezing the margins for the manufacturer and making commodities more and more dearer for the consumer. In addition to these, each of them also have a strong adverse affect on the environment , which accounts for the furnace the earth is being converted into. |