Between 1980 and 2000, U.S. coal mining productivity increased at an average rate of 6.6% per year, from 1.93 to 6.99 short tons per miner per hour. The major factors…
Solar energy in the United States already produces enough electricity to power 4.6 million average American homes. Most solar energy is collected at industrial power plants, but residential installations are…
The Energy Trilemma Index ranks countries in terms of their likely ability to provide sustainable energy policies through the 3 dimensions of the energy trilemma: 1. Energy security: the effective…
Coal used to generate electricity represents about 30 percent of U.S. emissions driving climate change. The plan, which has been temporarily blocked by the Supreme Court, aims to cut carbon…
Gasoline is a transparent, petroleum-derived liquid that is used primarily as a fuel in internal combustion engines. It consists mainly of organic aggregates obtained by the fractional distillation of petroleum, enhanced with many additives.