Essay on Global Warming

Essay on Global Warming

What is Global Warming

Global warming is an increase in the earth’s average atmospheric temperature that causes parallel changes in climate, which is causing greenhouse effect.

 Green House Effect

It is believed that average temperature is increased as compared to past averages due to the phenomenon greenhouse effect. Green house is actually  an atmospheric heating phenomenon, in fact gases present in the atmosphere like Carbon Dioxide, water vapours, methane and nitrogen do not allow the longer wavelength radiation to go back in to the atmosphere, they just act as a trap for the solar radiation and result is warming of the of the atmosphere. These gases are just trap the heat as trapped in the artificial greenhouse for vegetables and plants, that’s why they are referred as greenhouse gases.

 Since the   sun rays, mostly in the form of short wavelength observable energy radiation, enters the atmosphere and is engrossed by the Earth’s surface. The heated surface then radiates some of that energy into the atmosphere in the form of longer wavelength energy radiation. While some of these radiation seepages into space, ample of it is engrossed by greenhouse gases in the lower atmosphere, which in turn re-radiate a share back to the Earth’s surface. The troposphere thus acts in a manner roughly analogous to the glass in a greenhouse, which allows rays to penetrate and warm the plants and soil but which traps most of the subsequent heat energy inside.

Effect of Green House effect

However, greenhouse effect is essential to life on Earth but the increase of its effect due to increased levels of greenhouse gases in the atmosphere is considered to be the main causative factor to global warming. Greenhouse maintained the temperature level, which is responsible for existence of life on earth. Such global warming is called “natural greenhouse effect. Whereas due to greenhouse gases this process has been accelerated and causing uncertain climate changing.

Facts about Global Warming

Satellite data, weather monitoring, and research has predicted that due to enhanced greenhouse effect following changing in the eco and climate system of the earth and its atmosphere are appearing.

Research data shows that the rate of warming is increasing. According to the United Nations’ Intergovernmental Panel on Climate Change (IPCC) reports that after 1850 decades were warmest.

It has been observed that average temperatures have increased to 1.4 degrees Fahrenheit around the globe as compared to previous century average.

Due to rise in temperature, arctic region is being affected most. Due to rise in temperature, ice of the region is melting at an alarming rate, which will ultimately change climate of whole globe unfavourably.  It is estimated that present ratio of melting of ice will completely vanish ice from Artic region upto 2040.

Several Glaciers in USA, Canada, and South Asia are also melting, which are making adverse changes in the climate of the countries. Due to this, countries in this region are facing problems of over flooding, uncertain rain, or absence of rain, hot weather, and depletion of water sources and river basins.

Only land, atmosphere is not under influence of global warming but ocean natural life is also being affected such that coral reefs, which are highly sensitive to small changes in water temperature, suffered the worst. Most of the reef is now diminishing.

Enhanced factors, which are responsible for global warming, are mostly man made. Burning of fossil fuels is one of the major contributed factors. Industrialization has augmented carbon dioxide and waste on the earth. Air and water pollution has made the earth a mess. Life in big cities and industrial areas has become much more difficult, due to shortage of resources and polluted environment. According to a researcher “If we continue to do what we are doing now, we will be in deep trouble” and even breathing will become an issue for us.

Here is a little detail of manmade factors responsible for warming the globe:-

S.No.	Name of agent responsible for Greenhouse influence.	Natural percentage	Manmade percentage
1	Water Vapours	95.00	0.001
2	Carbon Dioxide	3.50	0.117
3	Methane	0.29	0.066
4	Nitrous oxide	0.90	0.047
5	CFCs	.020	0.047
6	Total:-	99.71	0.278 ~ 0.28

Although above percentage of manmade factors is low but a small amount of these agents make adverse damage to ozone layer and cause its depletion which ultimately change the whole climate and temperature.

Global warming will shake following balance s on the Globe:-

It will ruin the species, which are unable to adopt changing weather

Health and shelter issue for man and wildlife.

Warmer environment and water will damage earth resources and health of life.

Drought, Over Flooding, depletion of forest, ozone, glaciers, and fertile regions.

 Global Warming Solutions

It is said that prevention is better than cure; we have to make social changes and adopt such a culture and habits, which are healthy and natural. By adopting such things, which are nature friendly, we can lessen the climatic degradation in the environment.

Shifting from fossil fuels to other form of energy will eliminate the cause of greenhouse gases and pollution in the world. Dependency on the fossil fuels should now be cut to its limit.

Use of CFC should be banned.

Emission of greenhouse gases should be stopped and such legislation should be drafted and implemented to stop use of such elements which are dangerous for Eco system.

Do not fly through Airplane if not necessary; use buses instead of individual vehicles.

Stop air and water pollution.

Avoid pesticides and fertilizers.

Use only trusted and genuine products and brand which are not harmful for both the environment as well as human health.

Conclusion

On the whole we all are talking, publishing books and writing on the webs about global warming but emphasis is now should be  given by each individual for doing practical work, because millions of words and researches have been made about global warming or even all issues related to this globe but the item which is still missing is practical contribution by all and sundry.