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This document discusses various energy resources including renewable energy sources like petroleum, coal, natural gas, tar sands and oil shale as well as renewable energy and nuclear power. It provides a brief overview of different fuel types used to power economies and generate electricity around the world.

Science

Energy Resources
Petroleum
Coal
Natural Gas

Energy Resources: Tar sands and Oil Shale

This slideshow begins with an explanation of the science that is driving climate change. As fossil fuels are burned, heat-trapping carbon dioxide enters the atmosphere, altering the Earth's natural carbon cycle. This has dangerous impacts around the world. Extreme temperatures are becoming the norm, which leads to catastrophic weather events like droughts that cause wildfires, or storms that cause floods. The longer it takes to reverse our emissions trends, the worse these weather events will become and the further away we get from ever reaching a stable climate. But there are solutions; natural gas has become increasingly cheaper in recent years and, if extracted and consumed properly, can offer a much cleaner energy source than traditional coal. Huge gains have been made in energy efficiency as well; in buildings, transportation, industry, and the electricity system. Renewable energy has also entered the playing field, with solar, wind, biomass, geothermal, and storage now starting to be able to compete with traditional fossil fuels. Policy action is needed in order to maintain this transition toward cleaner energy. We need to manage our use of fossil fuels, expand energy efficiency, and accelerate renewables. Whether it's by state regulation, federal standards, or Congressional action, we have the opportunity to ensure a low-carbon future for the U.S. and the world.

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