Energy use is one of the key issues of our time. People have traditionally relied on fossil fuels, including oil, coal, and natural gas. There are growing concerns, though, about the pollution caused by these energy resources. In addition, these sources of energy are nonrenewable. That is, they can be used up. Countries around the world are exploring ways to use renewable sources of energy, such as solar power. Energy Resources examines the role of traditional sources of energy and the development of alternative energy resources.O uso de energia é um dos principais problemas do nosso tempo. As pessoas tradicionalmente dependem de combustíveis fósseis, incluindo petróleo, carvão e gás natural. Há preocupações crescentes, no entanto, sobre a poluição causada por esses recursos energéticos. Além disso, essas fontes de energia não são renováveis. Ou seja, eles podem ser usados. Países ao redor do mundo estão explorando maneiras de usar fontes renováveis de energia, como a energia solar. Recursos Energéticos examina o papel das fontes tradicionais de energia e o desenvolvimento de recursos energéticos alternativos.Energy use is one of the key issues of our time. People have traditionally relied on fossil fuels, including oil, coal, and natural gas. There are growing concerns, though, about the pollution caused by these energy resources. In addition, these sources of energy are nonrenewable. That is, they can be used up. Countries around the world are exploring ways to use renewable sources of energy, such as solar power. Energy Resources examines the role of traditional sources of energy and the development of alternative energy resources.