Sunday, January 27, 2008

Global Warming

Global warming was turning as the most serious issue in the present world. It is the average increase in earth’s temperature resulting in an increase in the volume of water which contributes to sea-level rise .it also leads to the increased frequency and intensity of extreme weather events, such as floods,droughts,heat waves, hurricanes.

some other effect of global warming include higher or lower agricultural yields, glacier retreat and many more effects.Green house gases(carbon dipoxide)is the major cause for global warming .the amount of this gases released was increasing which will further worsen the situation.the same green house gases was the cause for ozone layer depletion.


At present the current ice sheets are Antarctic and Greenland; The Antarctic ice sheet is the largest single mass of ice on Earth.The Greenland ice sheet occupies about 82% of the surface of Greenland, and if melted would cause sea levels to rise by 7.2 metres.Estimated changes in the mass of Greenland's ice sheet suggest it is melting at a rate of about 239 cubic kilometres (57.3 cubic miles) per year.

Physical impacts:

  • Extreme weather
  • Increased evaporation
  • Glacier rethreat and disappearance
  • Sea level rise
  • Temperature rise
  • Acidification
  • Forest fire
  • Ecosystem imbalance

Global warming should be controlled. For this awareness should be spread among all kinds of people. some way of controlling global warming include afforestation,eco freindly vechile, minimizing the usage of fossil fuels,recycling, finally we should make our local government part of the solution.