le biomasse i processi termochimici
The world relies on a variety of energy sources. Fossil fuels, including natural gas, oil and coal–accounted for over 81 percent of all energy consumed in the year 2018. Renewables, including solar power, wind power hydroelectricity, and biomass, account for 14 percent. Nuclear energy is 5 percent. Different countries have different energy sources to balance environmental and economic requirements.
Nature’s energy can be found in a variety of forms like sun, wind waves and ocean. These primary sources transform into more efficient forms of energy, like electricity or heat, once they are harnessed. When these energy sources are used up, they become non-renewable energy sources.
Many fossil fuels and some of the other sources of energy that aren’t renewable can be harmful to the environment. Mining oil, for instance is a destructive process that can destroy the forests that are virgin to the earth. Fracking (hydraulic fracturing) can lead to earthquakes and water pollution. The burning of coal releases carbon dioxide, which contributes to global warming.
Fortunately there are many promising sources of energy are sustainable and renewable. Solar, wind and hydropower can, for example, generate electricity without digging for new sources.
Other sources of sustainable energy are gaining momentum, such as the wave and tidal power. In order to be utilized at an enormous scale, these technologies need to have effective distribution networks. They need to be constructed using a source of non-renewable energy sources. In the end, these sources aren’t able to provide the bulk of our energy needs. It’s important to remember that the prices of renewable energy equipment have dropped dramatically in recent years and the efficiency of these equipments is growing.
