The world uses a variety of different energy sources. Fossil fuels, including natural gas, oil, and coal–accounted for over 80 percent of the energy consumed in the year 2018. Renewables, like wind, solar power, hydroelectricity and biomass, make up for 14 percent. Nuclear energy is responsible for another 5percent. Different countries use different types of energy sources, while balancing the environmental aspects with economics.
Nature is a rich source of energy in a number of forms: sunlight and wind, waves, ocean and more. When harnessed and converted into more practical forms of energy, like electricity or heat, these are referred to as primary sources. Once these energies are used up, they become nonrenewable energy sources.
The environment is damaged by many fossil fuels, in addition to other non-renewable sources of energy. For example mining for oil could degrade the world’s forests. Hydraulic fracture (fracking) can cause earthquakes as well as water pollution. Carbon dioxide is released when coal is burned and contributes to global warming.
Fortunately, many 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 fresh supplies.
Tidal and Wave Power are two more renewable energy sources that are gaining popularity. However, to be used on a massive scale they must have efficient distribution networks. This requires the use of non-renewable energies to build these networks. These sources aren’t sufficient to provide the majority of our energy requirements. It’s still important to remember that the prices of renewable energy equipment have decreased dramatically in recent times and the efficiency of these equipments is growing.
https://leonardogiombini.it/2018/06/02/leonardo-giombini-e-le-energie-rinnovabili/
