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DISCOVER

GLOBAL WARMING

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Published in: Geography
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Short ppt on Global Warming

Hemkumar M / Kolkata

5 years of teaching experience

Qualification: B.Tech.

Teaches: School Level Computer, All Subjects, Chemistry, Mathematics, Physics, Algebra

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  1. -4
  2. 1 ,INTRODUCTION From The Stone Age to the modern era man has come a long way. In his pursuit of comforts of life he ignored the threat of pollution and environmental degradation caused by industrialization. Global warming is not new as this process occurs naturally and keeps the Earth's temperature about 50 degrees. Fahrenheit warmer than it would be otherwise. Without this natural cover, Earth's surface would be colder than it is today, , making the planet freezing and devoid off life.
  3. 2.WHAT ISGREENHOUSE G'ås{inth-e åtmoséhere,såcha {Cater, "Cårbon CFC?s and mitrousi ?Xide,- absorb infrared lighvand would otheryise escape to ipace, radiatingjt back toyya'yds the plane€i? surface. gases arecalÉed€ greenhétj$e _gases' ånd!-freybave å cri!iZaI fölénn determinifigåhe tempera ure of the •Edith's surface aiåd the living Conditionsc»n, the planet. Thi#mtural Pi-oce*sais -called theifgreenhöuse:effect".
  4. 3, EFFECT ON GLOBAL WARMING' l. SERVE CHANGES IN WEATHER : > Eai-;th's a. new high:öfV14.87! degree •centigradee 'Rise in temperature was marked by unusually severe weather inmany partSöf the: w.orl& Thefrony of this global warmmg is that while:it •could reduce. climatic changes by drying•uprains. Iti&ould also raiie sea levels Auth islands andii low: level coastalüVeasL
  5. 11,1MPACT ON ARCTIC ECOSYSTEM The ecosystem which sustains the livelihood of Arctic residents is melting the ice as temperature rise. >The layer of permafrost is melting, causing an inland lake to drain into the ocean and killing fresh water fish.
  6. 111,KYOTO PROTOCOL A un- brokered treaty was signed by in 1997 in Kyoto Japan. It was called the Kyoto Protocol. It commits the rich countries to binding cut in their emission of greenhouse gases, such as carbon dioxide. The developed countries agreed to cut their emissions by a collective average of 5 percent below their levels in 1990 by 2008-2012. Representative Climate Conference (COP C) in Nov 2000, and discussed about the implementation of the Kyoto Protocol.
  7. IV. ERRATIC RAIN People around the world will experience climate changes and the erratic rainfall China to Africa will jeopardize the lives of many people. IT is now nearly a decade since the IPCC accepted that human activates were changing the world's climate. The most severe warming is seen in the Arctic were the ice pack is shrinking, and thinning, according to the US experts.
  8. Scientists have. warned ltlåat a warmer w.orld Lvjill :mean more Storms floods; tdroughts$±ånd snowfalls. The countries that have to suffer most if the Hague talks fail are the;small Islands 'in-danger .0f - being;ubmerged•, from the Pacific tot!Che Caribbéan are panicky. The lives of million people will be affected theie: negptiat!ons,
  9. VI, OZONE GETTING DEPLETED Pollution from transport is the fastest growing source of carbon dioxide emissions since the industrial revolutions Carbon emission levels responsible for 70 percent of global warming vary widely among nations. Due to these emissions the ozone layer that provides a protective shield over the Earth from the harmful ultravoilent radiation is getting depleted. Another greenhouse gas, methane, has more than doubled. RESULT OF THIS, VERY HOT WEATHER LIKE THE SAME IN DESERT REGION OR MORE THAN
  10. VII,MAJOR CLIMATE CHANGE If we do not act to reduce the emission of these heat- trapping gases, it is predicted that global temperature could rise 2 degree to 6degree Fahrenheit in the next 100 yrs. Just a few degree difference in the global average temperature can mean a major climate change. The amt o greenhouse gases that are released could be controlled through prudent planning and implementation of environmental priorities. Man has to act now to insure against the risk of destructive future warming by reducing the greenhouse gas emissions.

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