The world relies on a variety of energy sources. Fossil fuels, including natural gas, oil, and coal–accounted to more than 81 % of all energy consumed in the year 2018. Renewable energy sources, such as wind, solar power, biomass and hydroelectricity, account for 14 percent. Nuclear energy is another 5 percent. Different countries employ different energy sources to balance environmental and economic requirements.
Nature’s energy can be found in a variety of forms such as wind, sun, waves and ocean. When harnessed and converted into more practical forms of energy, such as heat or electricity, these are called primary sources. When those energies are exhausted, they are nonrenewable energy sources.
The environment is damaged by a variety of fossil fuels and also other energy sources that aren’t renewable. Oil mining, for instance can cause the destruction of our planet’s virgin forests. Fracking (hydraulic fracturing) can result in earthquakes and water pollution. The burning of coal releases carbon dioxide, which contributes to global warming.
Fortunately there are many promising sources of energy are sustainable and renewable. Wind, solar and hydropower can generate, for instance electricity without digging up new sources.
Other renewable energy sources are emerging, such as the wave and tidal https://leonardogiombini.it/2018/11/17/dal-protocollo-di-kyoto-e-oltre/ power. However, in order to be used in a large-scale manner these technologies need efficient distribution networks. This requires the use of non-renewable energies to build these networks. Therefore, these sources are not yet enough to supply the majority of our energy needs. But it’s important keep in mind that the costs for renewable energy-related equipment have fallen drastically over the last couple of years, and efficiency is increasing rapidly.