With the growing concern about global warming and the depletion of the earth’s non-renewable resources like fossil fuels, it is becoming increasingly clear that we need to find clean energy sources to replace the current non-renewable sources of energy. Currently most of the energy that the world uses is provided by burning fossil fuels, which pollute the air and the water and release high levels of carbon dioxide, nitrogen oxide, methane gases, and other greenhouse gases. Greenhouse gas emissions are now the largest cause of climate change, besides the emission of carbon dioxide from combustion. This contributes to global warming, acid rain, and the extinction of many types of plants and animals. The only source of energy that we have available that does not contribute to these harmful effects is clean energy, created by solar, wind, and hydroelectric power.
There are several clean energy sources that can be used to replace the current methods of obtaining energy. One of the most promising of these clean energy sources is the sun. The sun provides the light for the entire planet, without polluting the atmosphere or releasing any greenhouse gases. Wind power can also be used as an alternative to fossil fuels by converting wind into electricity. Hydroelectric power is also very promising clean energy sources as it produces no greenhouse gases and is readily available.
Wind turbines are being used around the world to generate electric energy for homes and commercial buildings. There are currently several large wind farms in the United States that are producing enough electricity to power all of the states’ electric grids. With the recent addition of solar panels to large wind farms, the possibility of using clean energy sources to eliminate our dependence on fossil fuels is becoming more feasible. If large scale developments can be made, it is not too farfetched to believe that clean energy produced from solar, wind power, hydroelectricity, and other alternative energies could totally eliminate the need for the electric grid altogether.