write an essay on global warming.
Answers
global warming is the gradual increase in the temperature of the earth.
Some gases lyk carbon dioxide , methane ,chlorofluorocarbon (CFC ), etc are present over the atmosphere lyk a blanket. These gases are know as green house gases and they trap the heat and make the earth warmer.
The incoming heat of the sun or insolation comes to the earth in the form of short waves.These waves heat up the earth's surface. The earth re-radiates a part of this heat back to space. The re-radiated heat waves have a longer wavelength and thus gets trapped in the layer of green house gases. Thus a part ofthe heat is absorbed by the atmosphere and the other part is reflected back to earth surface and the surface of earth gets heated.
In cold countries glass houses are made for plants. These houses traps the incoming solar heat and the inside of the glass house becomes warm suitable for the growth of plants.These houses are called green houses .
The earth gets heated in a way similar to that of the green house and thus the process is called green house effect. Here the green house gases act as the glass of the green house.
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Answer:
Explanation:
Global warming
Global warming is a part of climate change and is partially caused by increased greenhouse gases from burning of fossil fuels, deforestation, agriculture, and other industrial causes.
The Earth's temperature had already warmed by 1°C compared to pre-industrial levels. This temperature rise may appear small, but small rises in temperature translate into big changes for the world’s climate. This is because the amount of extra energy needed to increase the world’s temperature, even by a little, is vast. This extra energy is like force-feeding the global climate system.
·Hotter days
·Rising sea level
·oceans are warming
Melting glaciers, early snowmelt, and severe droughts will cause more dramatic water shortages and increase the risk of wildfires in the American West.
Rising sea levels will lead to coastal flooding on the Eastern Seaboard, especially in Florida, and in other areas such as the Gulf of Mexico.
Allergies, asthma, and infectious disease outbreaks will become more common due to increased growth of pollen-producing ragweed, higher levels of air pollution, and the spread of conditions favorable to pathogens and mosquitoes.
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