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What is Global Warming

Updated on July 9, 2009

what is global warming

Definition

As the name suggests, the increase in average temperature of the Earth's near-surface aur and oceans since the mid-20th century and its projected continuation is known as the GLOBAL WARMING.

Description and Causes of Global Warming

Global surface temperature of Earth increased 0.74 ± 0.18 °C (1.33 ± 0.32 °F) during the 20th century. The Intergovernmental Panel on Climate Change (IPCC) suggests that increasing greenhouse gas concentrations which results from human activity like deforestation and fossil fuel burning are major contributors to the increase in temperature since middle of the last century. Primary cause of global warming is the continuous pumping of Carbon Dioxide into our atmosphare. Currently in the world 40% of all CO2 emissions are caused by power plants.

Effects of Global Warming

Global warming can be very dangerous for our Earth. It can cause sea levels to rise. The continuing retreat of glaciers, permafrost and sea ice is expected due to global warming. Shrinking of Amazon forests and Boreal forests, increase in the intensity of extreme weather events, changes in the agricultural yields and species extinctions are some of very alarming and dangerous affects of global warming. Spread of disease will increase. Ocean temperatures will rise. We will have more hurricanes. There will be more droughts and of higher intensity due to global warming. Melting of polar ice caps due to global warming will raise sea levels, throw global ecosystem out of balance, many species of polar animals will become extinct and will have mant other harmful affects too.

What do you think of global warming after reading this?... tell me through comments.

Comments

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    • Ultimate Hubber profile imageAUTHOR

      Ultimate Hubber 

      9 years ago

      "Global warming also causes extreme temperatures."

      So a year being coldest is one of the harmful affects of global warming as coldest is the other extreme which is equally worse or maybe less but it is worse.

    • James A Watkins profile image

      James A Watkins 

      9 years ago from Chicago

      If it is warming, I think it is part of a natural cycle.  It warms and it cools.  The last global warming conference was snowed out.  This past year was one of the coldest and snowiest in 40 years.  I think the old Earth is a lot tougher than we give it credit for.

    • Ultimate Hubber profile imageAUTHOR

      Ultimate Hubber 

      9 years ago

      No doubt about it Ethel.

    • ethel smith profile image

      Ethel Smith 

      9 years ago from Kingston-Upon-Hull

      I think global warming is a very serious threat to man's future on this planet

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