Evaluation of energy alternatives. Generating costs of electricity per kwatt-hour. C. solar energy powers hydrologic and nutrient cycles developed and developing countries differ greatly in their source of energy and average per capita energy use. Evaluation of energy alternatives . 1 in 4 homes in US is heated by electricity.
Oil consists mostly of hydrocarbons with small amounts of sulfur, oxygen, and nitrogen impurities.
At current consumption rates -global oil reserves will last at least 44 years. Global warming, explosive Gas hydrates -icelike material underground deposits with water and methane, estimated to have 2x carbon as ALL other fossil fuels but not yet economically feasible to extract. The nuclear fuel cycle. Generating costs of electricity per kwatt-hour.