The world relies on a variety of different sources of energy. Fossil fuels, including natural gas, oil and coal–accounted for more than 80 percent of the energy consumed in the year 2018. Renewables, including solar power, wind power, hydroelectricity and biomass, make up for 14 percent. Nuclear energy accounts for another 5%. Different countries have different types of energy sources, and are able to balance economic needs with environmental concerns.
Nature’s energy can be found in a variety of forms like sun, wind waves, and ocean. When harnessed and transformed into more efficient forms of energy, such as electricity or heat, these are called primary sources. These sources are non-renewable resources of energy when they are exhausted.
The environment is harmed due to a wide range of fossil fuels along with other non-renewable sources of energy. For example mining for oil could degrade the world’s forests. Hydraulic fracture (fracking) can cause earthquakes and water pollution. Burning coal releases carbon dioxide, which contributes to global warming.
Fortunately, the majority of the most promising sources of energy are renewable and sustainable. Hydropower, solar power and wind for instance, can generate electricity without having to search for new resources.
Other sustainable energy sources are emerging, such as waves and tidal power. In order to be utilized at large scale, these sources of energy need to have effective distribution networks. They need to be constructed using a source of non-renewable energy. These sources aren’t sufficient to meet the majority of our energy requirements. It’s important to remember that the prices of renewable energy equipment has fallen dramatically in recent years and that efficiency is increasing.
https://leonardogiombini.it/2018/11/17/dal-protocollo-di-kyoto-e-oltre/
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