Write essay on Global warming in English | Paragraph on global warming | Climate change

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151 بار بازدید - 3 سال پیش - essay on global warming for
essay on global warming for secondary classes | paragraph on global warming 400 words

Global Warming
Global warming is simply defined as an increase in the average global temperatures. Though, it is an environmental problem, yet it has serious implications on the global economics, geopolitics, society, humanity and all living beings. Global warming is one of the most controversial scientific issues of the 21st century, challenging the very structure of our global society. It has been surmised that if it is not addressed properly and immediately, it would have catastrophic impacts.
Global warming means earth is becoming warmer gradually. There is increase in average global temperatures of air and oceans, accompanied by widespread melting of glaciers and rising of sea level. The United Nations Intergovernmental Panel on Climate Change (IPCC) in its ‘Synthesis Report on Climate Change’, states that there is clear evidence of rise in global temperatures and rise in sea level during the 20th century.
Majority of the scientists and research organizations, including IPCC have reached on consensus that global warming is caused by massive increase of greenhouse gases such as Carbon dioxide (Co2) in atmosphere resulting from burning of fossil fuels and deforestation.                                                                                                          
The temperature of earth is maintained by the balance between the heat energy coming from the sun and the heat energy returned back to space. Some atmospheric gases: Carbon dioxide (CO2), Methane (CH4), Nitrous Oxide (N2OX), Chlorofluorocarbons (CFC) and water vapors are important to this temperature balance. They form the green house blanket in the atmosphere. This blanket absorbs some of the long wave radiation and re-radiate it back to surface, which causes the atmosphere to warm up to 350C. Without these gases the earth’s atmospheric temperature would be 15 to 200C. If more such gases are added to the atmosphere, the earth’s temperature would increase accordingly and these are being added enormously.
This is why the global warming is taking place with greater pace due to the abundant increase in emissions. The scientist’s community is largely persuaded that not only is earth’s climate warming, but rate of warming is accelerating due substantially to human activities. The global warming has become the real test of the foundations of our modern society, civilization and democracy. Its anthropogenic causes are amply proved. Its implications have started hitting humanity, which are too harmful to be ignored.
Therefore, the world leaders have responsibility to respond to it effectively for the cause of humanity and our future generation. Climate change, and what we do about it, will define us, our era, and ultimately the global legacy we leave for future generations.


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