an article on Global warming of 150 -200 words
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Reducing Global Warming Our planet, Earth, is surrounded by a shield of atmospheric gases consisting primarily of nitrogen and oxygen. The sun produces radiation which is most intense at short wavelengths. The atmosphere is almost transparent to this radiation and is absorbed by the earth’s surface. When the land and sea are warm they radiate the energy they have absorbed at a longer wavelength, some is reabsorbed and re-radiated back to earth by atmospheric gases. Although eventually escaping into space, it is retained long enough to warm the atmosphere. This is the greenhouse effect, and the gases causing it are greenhouse gases.
Without global warming, the earth’s …show more content…
When forests are cleared or burnt CO2, methane and nitrous oxide are released into the atmosphere. Each year, deforestation contributes 23-30 percent of overall CO2 in the atmosphere by countries such as Brazil, Indonesia, Burma, Mexico and Thailand. Therefore, while more and more carbon dioxide is being released into the atmosphere, there are less and less forests to remove it. Deforestation both releases huge amounts CO2 into our atmosphere and destroys our means of absorbing and storing this substance. The destruction of the earths forests not only contribute to global warming, but also undermine the long-term ability of the Earth’s atmosphere to neutralize green house gases. The Earth’s defence mechanism against pollutants are called ‘trace radicals;’ gas molecules which interact with greenhouse gases, making them harmless. There are limited quantities of these trace radicals in the atmosphere, and as more greenhouse gases are released more trace radicals are used up. This diminishes the Earth’s ability to stabilize the atmosphere.
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Without global warming, the earth’s …show more content…
When forests are cleared or burnt CO2, methane and nitrous oxide are released into the atmosphere. Each year, deforestation contributes 23-30 percent of overall CO2 in the atmosphere by countries such as Brazil, Indonesia, Burma, Mexico and Thailand. Therefore, while more and more carbon dioxide is being released into the atmosphere, there are less and less forests to remove it. Deforestation both releases huge amounts CO2 into our atmosphere and destroys our means of absorbing and storing this substance. The destruction of the earths forests not only contribute to global warming, but also undermine the long-term ability of the Earth’s atmosphere to neutralize green house gases. The Earth’s defence mechanism against pollutants are called ‘trace radicals;’ gas molecules which interact with greenhouse gases, making them harmless. There are limited quantities of these trace radicals in the atmosphere, and as more greenhouse gases are released more trace radicals are used up. This diminishes the Earth’s ability to stabilize the atmosphere.
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Global warming or climate change has today become a major threat to the mankind. The Earth’s temperature is on the rise and there are various reasons for it such as greenhouse gases emanating from carbon dioxide (CO2) emissions, burning of fossil fuels or deforestation.
Impact of Greenhouse Gases
The rise in the levels of carbon dioxide (CO2) leads to substantial increase in temperature. It is because CO2 remains concentrated in the atmosphere for even hundreds of years. Due to activities like fossil fuel combustion for electricity generation, transportation, and heating, human beings have contributed to increase in the CO2 concentration in the atmosphere.
Global Warming: A Gradual Phenomenon
Recent years have been unusually warm, causing worldwide concern. But the fact is that the increase in carbon dioxide actually began in 1800, due to the deforestation of a large chunk of North-eastern American, besides forested parts of the world. The things became worse with emissions in the wake of the industrial revolution, leading to increase in carbon dioxide level by 1900.
Impact of Greenhouse Gases
The rise in the levels of carbon dioxide (CO2) leads to substantial increase in temperature. It is because CO2 remains concentrated in the atmosphere for even hundreds of years. Due to activities like fossil fuel combustion for electricity generation, transportation, and heating, human beings have contributed to increase in the CO2 concentration in the atmosphere.
Global Warming: A Gradual Phenomenon
Recent years have been unusually warm, causing worldwide concern. But the fact is that the increase in carbon dioxide actually began in 1800, due to the deforestation of a large chunk of North-eastern American, besides forested parts of the world. The things became worse with emissions in the wake of the industrial revolution, leading to increase in carbon dioxide level by 1900.
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