The World Uses a Variety of Different Energy Sources

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The world relies on a variety of energy sources. In 2018 fossil fuels, like gas, oil and coal, made up over 81 percent of the energy consumed. Renewables, like solar power, wind power hydroelectricity and biomass, make up for 14 percent. Nuclear energy contributes another 5 percent. Different countries have various energy sources, balancing the needs of the economy with environmental concerns.

Nature provides energy in many forms like sun, wind waves and ocean. These sources of energy transform into more efficient energy forms, such as electricity or heat, once they are harnessed. These sources of energy become non-renewable sources of energy when they are exhausted.

Many fossil fuels as well as some of the other nonrenewable energy sources have been causing environmental harm. Oil mining, for instance is a destructive process that can destroy the forests that are virgin to the earth. Fracking (hydraulic fracture) can lead to earthquakes and water pollution. Burning coal releases carbon dioxide, which contributes to global warming.

Fortunately, some of the most promising energy sources are sustainable and renewable. Solar, wind and hydropower could, for example, generate electricity without the need to dig for new sources.

Other sustainable energy sources are gaining momentum, such as the wave and tidal power. In order to be utilized at a large-scale, these technologies require efficient distribution networks. This requires the use non-renewable energy sources to build these networks. Therefore, these sources aren’t sufficient to meet the majority of our energy needs. It’s vital to remember that the prices of renewable energy equipment have fallen dramatically in recent years and efficiency is growing.