The world relies on a variety of energy sources. Fossil fuels, including natural gas, oil and coal–accounted for over 81 % of the energy consumed in the year 2018. Renewable energy sources like solar power, wind power biomass, hydroelectricity and biomass make up 14 percent. Nuclear energy is responsible for another five percent. Different countries have various energy sources, while balancing environmental and economic requirements.
Nature is a rich source of energy in many forms: sunlight winds, waves ocean and more. These sources of energy can be transformed into more practical forms of energy, like heat or electricity, when they are harnessed. When the energy source is used up, they become nonrenewable energy sources.
The environment is harmed due to a wide range of fossil fuels and also other energy sources that aren’t renewable. For instance mining for oil could degrade the world’s forests. Hydraulic fracture (fracking) can trigger earthquakes and water pollution. The combustion of coal releases carbon dioxide, contributing to global warming.
Fortunately some of the most promising energy sources are renewable and sustainable. Wind, solar and hydropower could generate, for instance electricity without digging for new sources.
Tidal and Wave Power are two other renewable energy sources that are gaining popularity. But, in order to be used at a large scale they must have effective distribution networks. They must be constructed using a source of non-renewable energy. These sources aren’t enough to fulfill the majority of our energy needs. It’s vital to remember that the prices of renewable energy equipment has dropped dramatically in recent years and efficiency is growing.