The World Uses a Variety of Different Energy Sources

The world uses a variety of different sources of energy. Fossil fuels — including natural gas, oil and coal–accounted to more than 81 percent of all energy consumed in the year 2018. Renewable sources such as wind power, solar energy biomass, hydroelectricity and biomass comprise 14 percent. Nuclear energy accounts for another 5 percent. Different countries use different energy sources to balance environmental and economic requirements.

Nature provides energy in many forms including sun, wind waves and ocean. When harnessed, and transformed into more convenient forms of energy, like heat or electricity, they are called primary sources. When the https://leonardogiombini.it/2019/02/14/interessante-articolo-sui-biocarburanti/ energy source is exhausted, they become nonrenewable energy sources.

The environment is harmed by a variety of fossil fuels and also other sources of energy that are not renewable. For instance mining for oil could strip the planet’s pristine forests. Fracking (hydraulic fracturing) can lead to water pollution and earthquakes. Burning coal releases carbon dioxide, contributing to global warming.

Fortunately, the majority of the most promising sources of energy are sustainable and renewable. Hydropower, solar energy and wind power for instance, are able to produce electricity without having to dig for new supplies.

Tidal and Wave Power are two more renewable energy sources that are emerging. To be utilized on an enormous scale, these technologies need to have effective distribution networks. This requires the use of non-renewable energy sources to build these networks. Therefore, these sources aren’t able to provide the bulk of our energy needs. It’s important to remember that the cost of renewable energy equipment have fallen dramatically in recent years and efficiency is growing.