Summarization 15

GLOBALWARMING AWARENESS in 2007 Mankind has been facing many problems which pose a threat to the very existence of all living beings on earth.

This mechanism by which carbon dioxide traps heat in the atmosphere is also referred to as the "greenhouse effect".

Carbon dioxide, along with other greenhouse gases, allows the shorter wavelengths of energy radiating from the sun to pass through to the earth's surface and then heat it.

The CO2 molecules in the atmosphere do absorb these infra-red radiations before it escapes into space and thus a certain amount of heat is retained in earth's atmosphere, providing an additional source of energy.

it increases the average temperature of parts of earth, due to excessive heat the polar ice caps start to melt away causing a rise in sea levels, thereby flooding many coastal areas of the world.

The reason behind our worry is that certain human activities are now disturbing the natural equation between the processes that release carbon dioxide into the atmosphere and the processes, which remove it.

In particular, the burning of fossil fuels such as coal, petroleum and natural gas tends to increase the amount of carbon dioxide in the atmosphere.

According to one estimate, the burning of fuels releases about 18000 million tons of carbon dioxide into the atmosphere every year.

The destruction of forests to make cultivated fields also decreases the consumption of the carbon dioxide by plants, because cultivate fields are less efficient in photosynthesis than forest.

Finding a solution to this massive problem is not an easy task, but the sure thing is that we will have to work together in a collective way if we are to escape from the dangers of over-warming of earth.