Why are alternative sources of energy important
In the world of climate change, alternative resources of energy holds a very important place. Global
warming is one of the symptom of climate change and due to that not only temperatures are rising but
also extreme weather events, shifting wildlife populations and habitats, rising seas, and a range of
other impacts. Renewable energy can be beneficial for reducing the emission of greenhouse gases.
People are at the edge of ruining the planet’s climate due to high greenhouse gas emissions. Green
alternative sources of energy has the potential of reversing some of the damage human beings have
brought upon the earth.
Reality should drive everyone to complete their duties as a human being in reducing pollution.
Sometimes small steps in energy usage can make a big impact in helping the planet to recover from
the damages caused by humans and their activities. If people are willing to provide a safer place to
live to the future generation, then they must start making a change to help the environment. For
example, you can obtain warm water by heating it with a solar-powered device, buy an electric car or
you can drill a geothermal well for all your home heating needs. People who practice the use of green
energy are in a better health overall as well. Pollution, even microscopic amounts, can affect very
badly on the human lungs over time. Take the necessary steps to ensure that the world is a safe place
to live for many years. A not so well known but just as dangerous new energy extraction form is
fracking for natural gas. Fracking is a controversial process in which drills mine deep into the earth to
recover gas hidden behind shale rock. The use of green electricity could reduce or eliminate the need
for this dangerous practice. Pollution could result from the high water and chemical mixture which is
employed likewise. the employment of green electricity could reduce or eliminate the necessity for
this dangerous practice. Alternative sources of energy are critical to maintaining health both on the
earth’s surface and under the bottom.
There are mainly 5 types of renewable energy, which are hydropower, wind, solar biomass and
geothermal. People have utilized the energy of river currents since a long time, using dams to control
water flow. Hydropower is the world's biggest source of renewable energy by far, with China, Brazil,
Canada, the U.S., and Russia being the leading hydropower producers. According to the studies,
marine energy projects currently generate an estimated 500 megawatts of power, which is less than
1% of all renewables but still the potential is far greater. Wind is being used as a source of energy for
more than 7,000 years(approx.). Another problem with wind turbines is that they’re a danger for birds
and bats, killing hundreds of thousands annually, not as many as from glass collisions and other
threats like habitat loss and invasive species, but enough that engineers are working on solutions to
make it safer for flying wildlife.
Solar panels convert the sun's light to electricity, concentrating solar power (CSP) plants use mirrors
to concentrate the sun's heat, deriving thermal energy instead which is a very nice utilization of
sunlight. Solar thermal energy is also being used worldwide mostly for heating, and cooling. Biomass
energy includes biofuels like ethanol and biodiesel, wood, wood waste, biogas from landfills, and
solid waste from municipal. Like solar power, biomass is also a flexible energy source, capable of
fuelling vehicles, heating buildings, and producing electricity. But biomass can raise thorny issues.
Critics of corn-based ethanol, for example, say that it competes with the food market for corn and
supports the same destructive agricultural practices that have led to toxic algae blooms and other
environmental hazards. Meanwhile, scientists and companies are also working on ways to more
efficiently convert corn stover, wastewater sludge, and other biomass sources into energy, aiming to
extract value from material which would otherwise go to waste. Used for thousands of years in some
countries for cooking and heating, heat energy comes from Earth’s internal heat. On an outsized scale,
underground reservoirs of steam and plight are often tapped through wells which will go a two
kilometres deep or more to come up with electricity. On a smaller scale, some buildings have
geothermal heat pumps that use temperature differences several meters below ground for heating and
cooling. Unlike solar and wind energy, heat is usually available, but it's side effects that require to be
managed, like the rotten-egg smell which will accompany released sulphide.
https://www.nationalgeographic.org/article/renewable-energy-explained/
https://www.jstor.org/stable/42990529?Search=yes&resultItemClick=true&searchText=Alternative
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