The world uses a variety of energy sources. In 2018, fossil fuels, such as oil, gas and coal, accounted for more https://leonardogiombini.it/2018/11/17/dal-protocollo-di-kyoto-e-oltre/ than 81 percent of energy consumed. Renewables, such as solar power, wind power, biomass and hydroelectricity, account for 14 percent. Nuclear energy is responsible for another 5%. Different countries use different sources of energy to meet economic needs and environmental concerns.
Nature provides energy in a number of forms: sunlight, wind, waves, oceans and more. These sources of energy are transformed into more convenient energy forms, such as electricity or heat when they are harnessed. These sources of energy become non-renewable sources of energy once they have been exhausted.
A lot of fossil fuels and a few of other energy sources that are not renewable have been causing environmental harm. For instance, oil mining can cause the destruction of our forests of the earth. Hydraulic fracture (fracking) can trigger earthquakes and water pollution. The combustion of coal releases carbon dioxide, which contributes to global warming.
Fortunately, a majority of the most promising sources of energy are sustainable and renewable. Solar, wind and hydropower could create, for instance, electricity without digging up new sources.
Other renewable energy sources are emerging, including waves and tidal power. However, to be utilized at a large scale these technologies need effective distribution networks. This requires the use of non-renewable energy sources to build these networks. These sources aren’t able to satisfy the majority of our energy demands. It’s vital to remember that the cost of renewable energy equipment have dropped dramatically in recent years and the efficiency of these equipments is growing.