GLOBAL WARMING

Global warming has become a very popular topic in the world today, establishing itself as the world’s number one concern. Global Warming is a phenomenon in which the earth’s temperature drastically rises.  It happens when greenhouse gases (carbon dioxide, water vapor, nitrous oxide, and methane) trap heat and light from the sun in the earth’s atmosphere, which increases the temperature because there is no way of these escaping out of the atmosphere, thus causing discomfort and hurt to many people, animals, and plants.

Global warming can be simply understood by drawing a comparison to the Greenhouse effect, which is when the temperature rises because the sun’s heat and light is trapped in the earth’s atmosphere.  This is like when heat is trapped in a car. On a very hot day, the car gets hotter when it is out in the sunny parking lot.  This is because the heat and light from the sun can get inside the car, by going through the windows, but it can’t get back out.  This is what the greenhouse effect does to the earth.  The heat and light can get through the atmosphere, but it can’t get out.  As a result, the temperature rises.

The most common cause of global warming is the burning of fossil fuels which are mainly petroleum and coal, all which produce carbon dioxide as one of the by-products. Deforestation is another cause of this phenomenon. This is because it reduces the number of trees which ought to absorb the excess carbon dioxide in the atmosphere, which is the main component of greenhouse gases that traps and retains the sun’s radiant heat. Unattended to garbage especially that which is left to heap into landfills when burned releases greenhouse gases .

Evidence for warming of the climate system includes observed increases in global average air and ocean temperatures, widespread melting of snow and ice at both the North and South poles of the globe which subsequently leads to rising global average sea level. Rising sea levels is the biggest threat that has been posed by this occurrence in that low-level islands face as a result submergence. Destruction of plants and human settlement in these areas are just examples of its effects. The most common measure of global warming though is the trend in globally averaged temperature near the earth’s surface.

All these can be reduced or better still controlled through enactment and enforcing of international environmental treaties and laws all of which seek to protect the plight of the World as a whole from the curse of global warming. Besides environmentally-friendly laws, use of alternative sources of energy like biogas and solar energy may be exploited whilst forestation and reforestation are also other activities aimed at minimizing this threat.

In conclusion, it is paramount to recognize that global warming is a reality which threatens the very existence of flora and fauna in diverse ways. Humans and their habitats alike are part of the statistics and this calls for a swift action plan to be put in place because sooner than later, The Maldives being the hardest hit island on the verge of submergence. Minimizing these effects will however take longer time as the whole world still relies on the causes of global warming. Caution and Care are the keys to a sustainable healthy world for you and me.

References:

HYPERLINK “http://en.wikipedia.org/wiki/Global_warming” http://en.wikipedia.org/wiki/Global_warming

HYPERLINK “http://www.weatherquestions.com/What_is_global_warming.htm” http://www.weatherquestions.com/What_is_global_warming.htm

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