27 Set The World Uses a Variety of Different Energy Sources
The world is awash with a variety of energy sources. Fossil fuels — including oil, natural gas and coal–accounted for over 81 percent of all energy consumed in the year 2018. Renewables, including solar power, wind power, hydroelectricity and biomass, account for 14 percent. Nuclear energy is responsible for another 5percent. Different countries have different sources of energy to meet the environmental and economic demands.
Energy is found in nature in many forms, including sunlight as well as wind, waves oceans and more. When harnessed and transformed into more convenient forms of energy, such as electricity or heat, these are called primary sources. When those energies are exhausted, they turn into non-renewable energy sources.
A lot of fossil fuels and a few of the other nonrenewable energy sources have been causing environmental harm. Oil mining, for example, can destroy https://leonardogiombini.it/2019/02/14/interessante-articolo-sui-biocarburanti/ the planet’s virgin forests. Hydraulic fracture (fracking) can cause earthquakes as well as water pollution. Carbon dioxide is released when coal is burnt, which contributes to global warming.
Fortunately, some of the most promising sources of energy are renewable and sustainable. Hydropower, wind and solar for instance, can generate electricity without the need to dig for new supplies.
Tidal and Wave Power are two more sustainable energy sources that are gaining popularity. In order to be utilized at a large-scale, these technologies need to have effective distribution networks. These must be built, which requires the use of non-renewable energy. This means that these sources are not yet sufficient to meet the majority of our energy needs. It’s still important to remember that the prices of renewable energy equipment have drastically decreased in recent years and the efficiency is rising.