Importance of alternative sources of energy answer of 2 to 3 page for presentation
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Answer:
What is Alternative energy?
Alternative energy represents the clean energy source (does not pollute) that derives from a natural and renewable source of energy such as solar, wind, geothermal, waves, tides, waste, biomass, hydrogen and so on.
As the name suggests, alternative energy has appeared as an alternative to fossil fuels because fossil fuels are considered finite sources of energy and are polluting the environment.
Today, we start using alternative sources of energy like solar power, wind power, geothermal, biomass, hydro power, waste energy and so on, because these renewable energy sources are not polluting the environment and are helping us to reduce the level of greenhouse gas emissions in the atmosphere and to reduce climate change effects.
Of course, is not enough to generate clean energy from clean and renewable energy sources like the Sun, wind, water and biomass, we also need to reduce the level of CO2 in the atmosphere.
Green plants consume CO2, so they can be used as a green army that can help us reduce the level of CO2 in the atmosphere.
More trees mean less CO2 in the atmosphere, so instead of cutting the forests to be used in the industry, we need to plant the trees back in their place, and even to populate new areas with young trees and regenerate the forests.
There are more and more companies in the world that are getting revenues from renewable energy.
There are also a few controversies here because some consider hydropower and nuclear power as alternative energy sources (they are different than fossil fuels represented by coal, oil and gas), while others say that nuclear power produces nuclear waste that is harmful for the environment.
In terms of nuclear power we can consider as a renewable energy source of the future the energy produced by nuclear fusion.
ITER builds a tokamak fusion reactor in southern France.
What is Nuclear fusion?
Nuclear fusion is the atomic reaction in which a number of atoms are combined to create a single, but more massive atom. The new atom created has a slightly smaller mass than the sum of the masses of the atoms used to create the massive atom, and the difference in mass is released in the form of energy during the fusion reaction.
The most common nuclear fusion reaction in the known universe, is the merging of hydrogen nuclei to create helium nuclei. Nuclear fusion is the process that occurs inside the stars including our Sun.
Mankind wants to use the nuclear fusion reaction here on Earth to generate massive quantities of clean power, and end the use of fossil fuels.
What are the most common alternative energy sources?
You can build your own solar panel and generate clean electricity for free.
What is Solar power?
Solar power represents an abundant source of clean and renewable energy that is produced by the Sun, and can be used here on Earth to cover our energy needs without releasing harmful greenhouse gases.
Solar energy is used as an alternative energy source today because it produces free heat, and free electricity without producing any kind of CO2 emissions.