We require a variety of energy sources to live and work. Solar, wind, geothermal and biomass are a few of the sources. These sources are not just an important source of electricity, but they can also be used to heat or transport. The main challenge with these sources of energy is that they could cause greenhouse gas emissions when they are burned to produce electricity. This creates the need for greener sources of energy.
The most commonly used kind of energy is called fossil fuels, made up of coal, oil, and natural gas. They began to form millions and millions of years ago when animals and plants of the past died and were covered by layers of sedimentary rock. When the conditions were right they were slowly transformed into learn the facts here now carbon-rich materials that, when burnt create energy. These fossil fuels cannot be recycled because they will run out in our lifetimes or in many lives.
Renewable energy sources are replenished continuously. The sun is the main source of renewable energy since it provides light and heat. It is used to power our homes and businesses as well to drive our cars. Wind is a renewable energy source that generates electricity by spinning turbines. We have been using it since the first began to harness the wind for millennia. We employ biological processes to produce alcohol (a clear, alcohol-like substance that can be used to make fuel) from waste and crops.
In the list of sources, hydropower is the largest renewable energy source in the United States, though wind and biofuels are likely to become the leading source of energy in the near future. Hydropower is based on nature’s water cycle to harness the power of swiftly flowing water, which is used in turn to produce electricity.