article on global warming
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Hey there !
GLOBAL WARMING !
What is Global Warming?
Earth absorbs about 75 % of the total solar energy reaching its surface thereby increasing its temperature. Some of this energy is radiated back into the atmosphere. The gases present in the atmosphere for example ozone, methane, carbon dioxide, water vapor and chlorofluorocarbons are called greenhouse gases, they absorb some heat thereby restricting the heat to escape our atmosphere. These gases add to the heating of the atmosphere and result in global warming.
In places where the temperature is low, we use glass covered areas known as a greenhouse to grow flowers, fruits, and vegetables. It is very interesting to know that even we live in a greenhouse, but the difference is that we are not covered by the glass but by the blanket of air called the atmosphere. It is this atmosphere which has kept the earth’s temperature constant for centuries and helped in the survival of life. Atmosphere traps the heat around the earth and keeps it warm. This is called as natural greenhouse effect because it maintains the temperature and sustains life.
In a greenhouse, the solar energy enters through the glass, warms the soil and atmosphere and helps in the growth of plants. In return, the soil and plants emit infrared radiation, which is partly absorbed and partly reflected by the glass. This mechanism traps the sun’s energy in the greenhouse. Similarly, we have carbon dioxide which absorbs heat (as they are transparent to sunlight but not to infrared heat radiation) and is the major contributor to the global warming.
Other than carbon dioxide we have methane, ozone, CFC’s and nitrous oxides forming a major part of greenhouse gases. These chemicals either occur naturally or are man-made. The use of these compounds should be reduced; otherwise, the average temperature of the earth will rise. This will result in melting of polar ice caps and flooding of the coastal areas. Increase in the global temperature also increases the incidence of diseases like dengue, malaria, yellow fever etc.
Hope it helps you !
GLOBAL WARMING !
What is Global Warming?
Earth absorbs about 75 % of the total solar energy reaching its surface thereby increasing its temperature. Some of this energy is radiated back into the atmosphere. The gases present in the atmosphere for example ozone, methane, carbon dioxide, water vapor and chlorofluorocarbons are called greenhouse gases, they absorb some heat thereby restricting the heat to escape our atmosphere. These gases add to the heating of the atmosphere and result in global warming.
In places where the temperature is low, we use glass covered areas known as a greenhouse to grow flowers, fruits, and vegetables. It is very interesting to know that even we live in a greenhouse, but the difference is that we are not covered by the glass but by the blanket of air called the atmosphere. It is this atmosphere which has kept the earth’s temperature constant for centuries and helped in the survival of life. Atmosphere traps the heat around the earth and keeps it warm. This is called as natural greenhouse effect because it maintains the temperature and sustains life.
In a greenhouse, the solar energy enters through the glass, warms the soil and atmosphere and helps in the growth of plants. In return, the soil and plants emit infrared radiation, which is partly absorbed and partly reflected by the glass. This mechanism traps the sun’s energy in the greenhouse. Similarly, we have carbon dioxide which absorbs heat (as they are transparent to sunlight but not to infrared heat radiation) and is the major contributor to the global warming.
Other than carbon dioxide we have methane, ozone, CFC’s and nitrous oxides forming a major part of greenhouse gases. These chemicals either occur naturally or are man-made. The use of these compounds should be reduced; otherwise, the average temperature of the earth will rise. This will result in melting of polar ice caps and flooding of the coastal areas. Increase in the global temperature also increases the incidence of diseases like dengue, malaria, yellow fever etc.
Hope it helps you !
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18
there is your answer!!!!!
Article on Global Warming (300 words)
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.
Cause of Concern
According to the Intergovernmental Panel on Climate Change (IPCC), global temperature is likely to rise by about 1-3.5 Celsius by the year 2100. It has also suggested that the climate might warm by as much as 10 degrees Fahrenheit over the next 100 years.
Impact of Global Warming
The sea levels are constantly rising as fresh water marshlands, low-lying cities, and islands have been inundated with seawater.There have been changes in rainfall patterns, leading to droughts and fires in some areas, and flooding in other areas.Ice caps are constantly melting posing a threat to polar bears as their feeding season stands reduced.Glaciers are gradually melting.Animal populations are gradually vanishing as there has been a widespread loss of their habitat.
Conclusion
As per Kyoto protocol, developed countries are required to cut back their emissions. There is a need to reduce coal-fired electricity, increase energy efficiency through wind and solar power, and also high efficiency natural gas generation.
Hope it helps!!!!
Article on Global Warming (300 words)
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.
Cause of Concern
According to the Intergovernmental Panel on Climate Change (IPCC), global temperature is likely to rise by about 1-3.5 Celsius by the year 2100. It has also suggested that the climate might warm by as much as 10 degrees Fahrenheit over the next 100 years.
Impact of Global Warming
The sea levels are constantly rising as fresh water marshlands, low-lying cities, and islands have been inundated with seawater.There have been changes in rainfall patterns, leading to droughts and fires in some areas, and flooding in other areas.Ice caps are constantly melting posing a threat to polar bears as their feeding season stands reduced.Glaciers are gradually melting.Animal populations are gradually vanishing as there has been a widespread loss of their habitat.
Conclusion
As per Kyoto protocol, developed countries are required to cut back their emissions. There is a need to reduce coal-fired electricity, increase energy efficiency through wind and solar power, and also high efficiency natural gas generation.
Hope it helps!!!!
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