Global Warming

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Global Warming

WHAT IS GLOBAL WARMING , CAUSES AND IT 'S EFFECTS

Since recent years the changes in the weather patterns caused by the Global Warming has caused anxiousness among Environmentalists , Weather forecasters , Naturalists etc . on the surface of the Earth all over the world . These changes are having the adverse effect on plants , wild life and humans

Global Warming is an average increase in the temperature of the Earth 's surface causing changes in the rainfall patterns and rise in sea level It is caused when the gases

like Carbon dioxide , methane , nitrous oxides , chloroflurocarbons (CFS , hydrofluorocarbons (HFCs perfluorocarbons (PFCs , and sulfur hexafluoride (SF6 ) are emitted due to the continuous use of fossil fuels for energy . These gases do not allow the earth 's heat to escape into the atmosphere i .e . they trap the heat by forming the blanket around the earth and thus increase the temperatures of the ground . The studies have indicated that the emissions of these gases will result in global warming from 2 .5 ?F to 10 .4 ?F by 2100 (Pew Center on Global Climate Change , Online resources

Svante Arrhenius in 19th century was the first Scientist to make this unique discovery of the effect of the human activity on the temperature His discovered that sions emersing from industries could increase CO2 levels in 3 ,000 years , that could warm the planet . Again in 1938 a British engineer , Guy Callendar in his talk to the Royal Meteorological Society claimed that the world was warming , but people called him eccentric . In the nineteenth century the mere idea of this global warming was mere fiction for the intellectuals ( Climate Leadership Initiative , Online

In the past century there has been the increase in the Global average air temperature near the Earth 's surface which rises from 0 .74 HYPERLINK "http /en .wikipedia .org /wiki /Plus-minus_sign " \o "Plus-minus sign - 0 .18 ? HYPERLINK "http /en .wikipedia .org /wiki /Celsius " \o "Celsius " C (1 .3 - 0 .32 ? HYPERLINK "http /en .wikipedia .org /wiki /Fahrenheit " \o "Fahrenheit " F Wikipedia encyclopeadia , online edition ) According to the Intergovernmental Panel on Climate Change (IPCC , Since the twentieth century most of the increase in globally averaged temperatures is due to the increase in anthropogenic greenhouse gas concentrations warming the surface and lowering the atmosphere by increasing the greenhouse effect (Wikipedia encyclopeadia , online edition

The rise in temperature will increase the temperatures at poles thus melting glaciers . If the current situation prevails , in next hundred years or so , the sea level will rise by 110-770mm thus submerging the coastal areas causing havoc to human lives . The change in weather patterns cause droughts in some and floods in other areas Thermohaline circulation will get slow , ozone layer will get depleted and this may increase the frequency of hurricanes and its intensity . PH value of oceans will get lower and the human health will be affected with the spread of diseases . There will be great threat to agriculture and bio diversity too . According to one study...