MAN HAS CONTRIBUTED TO GLOBAL WARMING
Global warming is an increase in the average temperature of the earth’s atmosphere (especially a sustained increase that causes changes. It also refers to an unequivocal and continuing rise in the average temperature of Earth’s climate system.
However, global warming is based on the greenhouse effect- warming that results when the atmosphere traps solar radiation; caused by the atmospheric gases (mostly nitrogen and oxygen, which are not greenhouse gases because they are virtually unaffected by long-wave, or infrared radiation) that allow sunshine to pass through but absorb heat that is radiated back from the warmed surface of the earth.
Moreover, the reason that the Earth is warm enough to sustain life is because of Greenhouse gases, in the atmosphere. The gases act like blanket keeping the Earth warm by preventing some of the sun’s energy being re-radiated into space. The effect is the same as wrapping oneself in a blanket – it reduces heat loss from one’s body and warm. If we add more greenhouse gases to the atmosphere, the effect is like wrapping yourself in a thicker blanket, even less heat is lost.
The greenhouse gases keep the energy in the atmosphere. The primary greenhouse gases – Carbon dioxide (Co2), Methane (CH4), Water vapor, Nitrous oxide (N20) and Ozone (03) which comprise around 1% of the air, C02 causes the increase in temperature because C02 traps energy at very specific wavelengths, while other greenhouse gases trap different wavelengths, which can be measured by using a technique called SPECTROSCOPY in Physics. That is, energy captured by Ozone (03), Methane (CH4) and nitrous oxide (N20) is radiated back to earth while most of the energy being trapped in the atmosphere corresponds exactly to the wavelength of energy captured by C02. Why has C02 increased by nearly 50% in the last 50 years?
According to National Oceanic and Atmospheric Administration (NDAA) Earth system Research Laboratory in Hawaii, U.S.A, in June 2013, it announced that C02 has increased by nearly 43% in the last 150years. C02 emissions include fossil fuel emissions, cement production and emissions from gas flaring. In recent times since the industrial revolution, the burning of coal, oil and natural gas has emitted roughly 500billion tons of C02, This C02 is the biggest factor responsible for recent warming trends – global warming.
Obviously, man clearly contributes to global warming because man’s use of fossil fuels result in C02 emissions in amounts significant, compared to the natural sources. Man, activities such as burning fossil fuels, causes more greenhouse gases to build up in the atmosphere, As the atmosphere thickens with more greenhouse gases, more heat is held in. Fossil fuels such as oil, coal and natural gas are high in carbon and when burnt, produce major amounts of carbon dioxide (C02) into the atmosphere.
Come to think of it, when we use about 1.2 billion gallons per day globally.
Furthermore, the greenhouse warming caused man’s C02 addition to the atmosphere which causes a much stronger warming due to increased water vapour at altitude (sea level). The great increase in water vapor at 8 to 12km altitude over the equator and the lower latitudes result in a warming hot zone in the atmosphere, which warms the entire globe by back-infrared radiation.
More so, the resulting warming causes catastrophic effects, such as droughts, heavy rainfall, increased numbers and severity of hurricanes, a greater mortality of older people, the extinction of species, and a great rise in sea level (altitude).
Additionally, the planet Earth the only home of man is bathed in steady rain of the rays of the sun. Most of these rays supply us heat and light, but a small percentage is lethal. These are the ultra-violet rays (U.V.B).
If these were to get to the surface of the Earth directly without being screened by, they would kill us all. Luckily, the surface of the Earth is shielded from these rays by the Ozone layer, but sadly enough, this Ozone is being gradually destroyed by man.
The Ozone layer is formed from a kind of Oxygen with three atoms (03) instead of the normal two atoms of Oxygen (02). Ozone occurs naturally in the stratosphere-The atmospheric layer between the troposphere and the mesosphere, several kilometers above the Earth’s surface. It absorbs the dangerous UV-B rays and only allows the much needed and safe light to pass through. There in the stratosphere, the Ozone layer is constantly being created by the rays of the sun as a result, it is a self-repairing shield. But ignorantly, man is now gradually destroying this vital shield with Chlorofluorocarbon (CFC) which are used in making all kinds of foamed plastic products, propellants in spray cans, coolants in Air conditioners and Refrigerators and solvents to clean electronic equipment.
Fortunately, down here on Earth, these are not lethal. But after they have leaked from Air conditioners, plastic foam, cup etc., they slowly dry up the Stratosphere where they are bombarded by the Ultra-Violet ray and they break up at last, releasing Chlorine, the real Ozone Killer.
Sadly, one Chlorine molecule may remain active for a century, destroying thousands of Ozone molecules.
Finally, we are today faced with a great ecological problem for which we are largely responsible. The action of man therefore seriously threatens the planet Earth.
What we do at FABE International Foundation to reduce global warming:
- Environmental awareness and climate literacy workshop.
- We plant more trees and build organic gardens using compost and not manure from animal dung in schools.
- We recycle plastics, cans, and paper at our registered EcoSchoolsNG
- We discourage single-use PET bottles and plastic bags for a reusable bottle or cloth bag.
- We encourage cycling to school and not so far places around the neighborhood.
- We encourage carpooling when transporting children to school and back home
- We make use of renewable form of energy during chemistry practical classes in schools
- We also turn our waste into compost and biogas
- We upcycle our waste to!
To find out more about what we do, or want to join us, kindly log on to www.fabeinternational.org
REFERENCES: – An Objectivist Individual: – Evaluating the Catastrophic Man-Made Global Warming.
By Taiye Taiwo.
FABE International Foundation is a not-for-profit environmental health organization passionate about the establishment and improvement of an eco-conscious generation committed and dedicated to the restoration, conservation, environmental sustainability, and protection of the environment. Our mission is to promote environmental sustainability, by engaging our youths and women in the identification, exploration, and facilitation of sustainable eco-solutions to problems caused by the impacts of climate change, affecting the health and environment of people and biodiversity in Nigeria through advocacy, education, youth development, women empowerment, community engagement and participation.