The world uses many different energy sources. Fossil fuels–including natural gas, petroleum and coal accounted for more than 80 percent of the energy consumed in the year 2018. Renewable energy sources like wind power, solar energy, biomass, and hydroelectricity comprise 14 percent. Nuclear energy is responsible for another 5percent. Different countries employ different energy sources to balance the needs of their economy and environmental concerns.
Energy is present in nature in a number of forms, including sunlight as well as wind, waves ocean and more. When harnessed and transformed into more efficient forms of energy, such as electricity or heat, these are referred to as primary sources. When those energies are exhausted, they are nonrenewable energy sources.
The environment is damaged by a variety of fossil fuels as well as some other energy sources that aren’t renewable. For instance, mining for oil can take away the planet’s forests. Hydraulic fracturing (fracking) can cause earthquakes and water pollution. Carbon dioxide is released when coal is burnt, which contributes to global warming.
Fortunately, some of the most promising sources of energy are sustainable and renewable. Hydropower, solar energy and wind power for instance, could produce electricity without having to search for fresh supplies.
Tidal and Wave Power are two more sustainable energy sources that are emerging. To https://leonardogiombini.it/2018/11/17/dal-protocollo-di-kyoto-e-oltre be utilized on a large-scale, these technologies require effective distribution networks. They must be constructed which will require the use of non-renewable energy. These sources aren’t sufficient to meet the majority of our energy demands. But it’s important keep in mind that the costs for renewable energy equipment have come down dramatically over the past few years, and their efficiency is rising rapidly.
