The world relies on a variety of energy sources. Fossil fuels–including natural gas, oil, and coal–accounted to more than 81 percent of all energy consumed in 2018. Renewables such as solar power, wind power biomass, hydroelectricity, and wind power are responsible for 14 percent. Nuclear energy is responsible for another 5%. Different countries employ various energy sources, and are able to balance environmental and economic requirements.
Nature provides energy in many forms: sunlight winds, waves ocean and more. When harnessed and converted into more efficient forms of energy, like electricity or heat, these are known as primary sources. When those energies are exhausted, they are nonrenewable energy sources.
Many fossil fuels as well as some of other energy sources that are not renewable are causing harm to the environment. Mining oil, for instance can cause the destruction of our forest ecosystems of the planet. Hydraulic fracturing (fracking) can trigger earthquakes and water pollution. Carbon dioxide is released when coal is burned which causes global warming.
Fortunately, a majority of the most promising sources of energy are renewable and sustainable. Hydropower, wind and solar for instance, can produce electricity without having to dig for new supplies.
Other renewable energy sources are emerging, such as waves and tidal power. However, in order to be utilized in a large-scale manner these technologies require effective distribution networks. They must be constructed using a source of non-renewable energy sources. These sources aren’t able to provide the majority of our energy needs. It’s important to remember esperienza consolidata dalla sala riunioni that the prices of renewable energy equipment have decreased dramatically in recent times and that efficiency is increasing.