Different Energy Sources

We require different sources of energy to work and live. Geothermal, solar, wind and biomass are a few of the sources. In addition to being an important source of electricity they are also used for transportation and heating. These energy sources produce greenhouse gases when they are burned to create electricity. This is why it is necessary to find greener sources of energy.

Fossil fuels are the most widely used form of energy. They include oil, coal, and natural gas. They began to https://leonardogiombini.it/2018/11/17/dal-protocollo-di-kyoto-e-oltre/ form millions of years ago when prehistoric animals and plants died and were covered by layers of sedimentary rock. In the right conditions, they were slowly transformed into carbon-rich substances that, when ignited, generate energy. The fossil fuels cannot be renewable as they will be depleted in our lifetimes or over the course of many years.

Renewable energy sources however are constantly replenished. The sun is the main source of renewable energy, since it supplies light and heat. It is used to power our homes and businesses as well to drive vehicles. Wind is a renewable energy source that produces electricity through spinning turbines. We have been using it since we first discovered how to harvest the wind for millennia. We use biological processes produce alcohol (a clear, alcohol-like substance which can be used as fuel) from waste and crops.

Of all these sources hydropower is by far the most important renewable energy source in the United States, though wind and biofuels are predicted to be the next to take over. Hydropower relies on nature’s cyclic water cycle to harness the power of swiftly flowing water, which is then used in turn to generate electricity.