Environmental awareness & its protection , the need of the hours!

The earth is now undergoing with deadly climatic changes. We the human race have sustainly altered the earth’s atmosphere .The worldwide priority for accelerated growth & development of nations has resulted in pushing up the level of green house gas emission in atmosphere to a dangerous threshold . In 2005 the concentration carbon dioxide exceeded the natural range that has existed over 650000 years . In the 20^th century the increase in average temperature was .74c sea level increased by 17cm & a large part of the Northern hemisphere snow cover vanished.

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GLOBAL WARMING.

Global warming is the increase in the average temperature of earth’s near surface, air & oceans due to build up of carbon dioxide & other green house gases in the atmosphere. The global temperature near earth’s surface has risen by .74±.18 degree celsius during the last 100 years. The intergovernmental panel on climate change (IPCC) in its climate models has projected that global surface temperatures are likely to increase by 1.1degree celsius to 6.4degree celsius between 1990-2100. Although most studies focus on period upto 2100, warming & sea level rises are executed to continue for more than a expected to continue for more than a millennium even if green house gas level are stabilizes . This reflects the large heat capacity of oceans.