The World Uses a Variety of Different Energy Sources

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The world is dependent on a range of energy sources. Fossil fuels–including natural gas, oil, and coal–accounted for more than 80 percent of the energy consumed in 2018. Renewable energy sources such as wind power, solar energy, biomass, and hydroelectricity make up 14 percent. Nuclear energy is 5 percent. Different countries employ different combinations of energy sources, and are able to balance environmental and economic requirements.

Nature provides energy in many forms such as wind, sun, waves and ocean. These sources of energy can be transformed into more practical forms of energy, like electricity or heat, when they are harnessed. When those energies are exhausted, they turn into non-renewable energy sources.

The environment is damaged due to a wide range of fossil fuels as well as some other non-renewable sources of energy. Mining oil, for instance can devastate the forests of the earth. Fracking (hydraulic fracturing) can cause earthquakes and water pollution. Burning coal releases carbon dioxide, contributing to global warming.

Fortunately some of the most promising sources of energy are sustainable and renewable. Wind, solar, and hydropower can produce, for instance, electricity without digging for new sources.

Tidal and Wave Power are two other sustainable energy sources that are emerging. However, to be utilized at a large scale they must have efficient distribution networks. These must be built and operate with the use of non-renewable energy sources. These sources are not able to satisfy the majority of our energy demands. It’s important to remember that the cost of renewable energy equipment have dropped dramatically in recent years and efficiency is growing.

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