We need different energy sources to work and live. They include wind, solar geothermal, biomass, and geothermal sources. These sources aren’t just major sources of electricity, but they can also be used for heating and transport. The main challenge with these sources of energy is that they could cause greenhouse gas emissions when burned to produce electricity. This leads to the need for more green energy sources.

Fossil fuels are the most widely used form of energy. They comprise oil, coal and natural gas. They were formed millions of years ago when animals and https://leonardogiombini.it/2019/03/01/le-biomasse-i-processi-termochimici/ plants of the past died and were covered by layers of sedimentary rock. Under the right conditions, these fossil fuels were gradually transformed into carbon-rich substances which, when ignited create energy. These fossil fuels won’t be renewable because they will run dry in our lifetimes or over the course of many lives.

Renewable energy sources are replenished continuously. The sun is the primary source of renewable energy, since it provides heat and light. It is used for our homes as well as for businesses and automobiles. Wind is a renewable energy source that produces electricity by spinning turbines. Since the first people discovered how to harness the wind, we have been using it for millennia. We use biological processes to create alcohol (a alcohol-like substance that is clear and transparent that can be used to make 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 to take the lead soon. Hydropower uses the natural water cycle to harness water’s rapid flow, which in turn can be used to produce electricity.