We require various energy sources to work and live. These include solar, wind geothermal, biomass, and geothermal sources. In addition to being the primary source of electricity, these sources can https://leonardogiombini.it/2018/06/02/leonardo-giombini-e-le-energie-rinnovabili/ also be used to transport and heating. The major issue for these energy sources is that they can cause greenhouse gas emissions if they are burned to generate electricity. This results in the need for more green energy sources.
The most commonly used kind of energy is fossil fuels, comprised of coal oil, natural gas. They were formed millions of years ago when prehistoric plants and animals died and were covered by layers of sedimentary rock. When the proper conditions, they gradually transformed into carbon-rich compounds that, when burned, generate energy. These fossil fuels will not be renewable since they will be depleted in our lifetimes or over the course of many years.
Renewable energy sources however are continuously replenished. The sun is the largest source of renewable energy, since it provides light and heat. It is used to power our homes and businesses and to drive our cars. Wind is another renewable energy source that produces electricity by spinning turbines. We have been using it since the first discovered how to harvest the wind for millennia. In the end, we employ biological processes to produce an ethanol (a clear alcohol that can be used to create fuel) from crops and waste.
Among these sources, hydropower is the largest renewable energy source in the United States, though wind and biofuels are expected become the leading source of energy in the near future. Hydropower makes use of the natural water cycle to harness water’s swift flow, which in turn produces electricity.