Energy And Renewable Energy

1678 Words 7 Pages
On his State of the Union address in 2014, President Obama made a statement- “The shift to a cleaner energy economy won’t happen overnight, and it will require tough choices along the way. But the debate is settled. Climate change is a fact. And when our children’s children look us in the eye and ask if we did all we could to leave them a safer, more stable world, with new sources of energy, I want us to be able to say yes, we did.” Energy is used to power essentially everything around the world, except some sources of energy are more harmful to the earth than others. Fossil fuels have been the prominent type of energy for every working machine, yet there have been many effects that have altered the earth’s atmosphere and what humans breathe …show more content…
They all have some similarities though: they can be reused and they won’t run out. Biomass is the energy from decaying plants and animal wastes. This organic material is burned to provide energy. Solar energy is captured from sunlight in solar panels, and can be converted into electricity. Wind turbines are able to turn wind energy into electricity. They can be found on wind farms or singularly. There are a few types of sources from water. The movement of tides drive turbines, mainly in estuaries. The water is forced through gaps to generate energy, and can even prevent flooding. Geothermal energy uses the natural heat of the earth, mainly from volcanic regions. Cold water is pumped underground and comes out as steam to be used for heating for to power turbines. Hydroelectric energy involves the movement of water through rivers, lakes, and dams.
There are many major benefits of renewable sources, including effects on global warming, public health and environment, and the economy. Greenhouse gas pollution comes from about 80% carbon dioxide, fluorinated gases, nitrous oxide, and methane. The excess carbon dioxide in the air comes from many fossil fuels. The amount of energy used by Americans as well as people around the world increases over time, so fossil fuels like coal and oil continue to be used. With the use of more renewable sources and less fossil fuels, there will be decreased global warming

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