The world relies on a variety of energy sources. In 2018 fossil fuels such as oil, gas and coal, were responsible for over 81 percent of the energy consumed. Renewables, including solar power, wind power, hydroelectricity and biomass, account for 14 percent. Nuclear energy is responsible for another 5percent. Different countries use different types of energy sources, in order to balance the environmental aspects with economics.
Energy is found in nature in many forms, including sunlight as well as wind, waves oceans, and more. These primary sources can be transformed into more practical forms of energy, like heat or electricity, when they are harnessed. These energies become non-renewable sources of energy once they have been exhausted.
The environment is damaged by many fossil fuels, and also other sources of energy that are not renewable. For instance mining for oil can take away the planet’s forests. Fracking (hydraulic fracturing) can cause earthquakes and water pollution. Carbon dioxide is released when coal is burnt which contributes to global warming.
Fortunately, a majority of the most promising sources of energy are renewable and sustainable. Wind, solar and hydropower for instance, could generate electricity without the need to dig https://leonardogiombini.it/2019/01/24/da-costruttore-le-biomasse-come-fondazioni/ for new supplies.
Tidal and Wave Power are two other renewable energy sources that are gaining popularity. To be used at large scale, these sources of energy require efficient distribution networks. They must be constructed, which requires the use of non-renewable energy sources. In the end, these sources aren’t sufficient to meet the majority of our energy needs. It is important to keep in mind that the cost of renewable energy equipment have decreased dramatically in recent times and that efficiency is increasing.