Fossil Fuels : The World 's Primary Energy Source

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Fossil fuels are currently the world 's primary energy source. Fossil fuel includes coal, natural gas, and oil. In 2015, The United States consumed 97.7 billion btu of energy, 81% of that was from fossil fuels (U.S. Energy Information Administration, 2016). Fossil fuel use will cause air and water pollution that will negatively affect all life on Earth. In 2012, it was estimated that air pollution caused 6.5 million deaths worldwide (WHO, 2016). These pollutants can worsen or cause respiratory and heart conditions. But, it 's not just humans that can be affected, marine life also suffers from fossil fuel usage. According to The United States government, the 2010 BP oil spill dumped an estimated that 210 million gallons of oil into the Gulf…show more content…
Solar energy systems do not cause air or water pollution, and doesn’t contribute to greenhouse gases that could causes climate change. Another benefit to going solar is the cost to install it has dropped by more than 60% over the last 10 years (SEIA, 2017). The decline in cost is a trend that is expected to continue. Wind is also another alternative source to fossil fuels. It can be used for generating electricity, charging batteries, pumping water, and grinding grain. Like solar, wind is a clean renewable source of energy and does not emit any harmful gases or pollution. Wind turbines can be installed in oceans, where wind potential is higher. Larger wind turbines can generate energy for a building or several houses, while small turbines can be connected to individual homes Wind turbines can also be combined with solar panel systems to provide additional energy. The U.S. has already seen positive effects due to wind energy. According to the American Wind Energy Association, production of wind power in the United States in 2015 avoided consumption of 73 billion gallons of water and reduced CO2 emissions by 132 million metric tons, while providing USD 7.3 bn in public health savings (Wikipedia Wind Power, 2017). According to the DOE 2015 Wind Technologies Market Report, wind turbine cost declined 20% - 40% since 2008. Biomass is another form of clean renewable energy source that can be used to lessen fossil fuel dependence. Biomass consists of organic material

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