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Global warming

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Kyoto summit! KYOTO, Japan (Dec. 10) - Following are the main elements of the ... Protocol to the 1992 Climate Change Treaty, approved after 11 days of arduous ... – PowerPoint PPT presentation

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Title: Global warming


1
Global warming
  • Stop and think!
  • Were killing our world faster each
  • day!

2
The green house effect!
  • Most of the sun's energy that reaches the earth
    is absorbed by the oceans and land masses and
    radiated back into the atmosphere in the form of
    heat or infrared radiation. Most of this infrared
    energy is absorbed and reradiated by atmospheric
    gases such as water vapor and carbon dioxide.
    This phenomenon, referred to as the greenhouse
    effect (below), serves to keep the earth some
    33C (60F) warmer than it would otherwise be. As
    concentrations of gases that absorb and reradiate
    infrared energy (i.e., greenhouse gases GHGs)
    increase, the warming effect increases.

3
What we can do to help our environment ! The
problem is far more serious than we think.
  • Researchers claim that global warming is real and
    the whole world will be in danger unless
    corrective measures being timely taken.
  • How?   It is simple. We can switch off the light
    as we leave the office or home for a considerable
    period of time? We can share cars when we go to
    the same direction and/or meetings? We can leave
    the screen off, when we do not use the computer?
  • We could turn of TV's.videos we could use
    rechargeable batteries than buy new ones each
    time.
  • we could walk each day to school or work,walk to
    the near by places we want to visit.
  • Go on family walks to see the country side.
  • Enjoy life!!!!!!!!!!!!!!!!!

4
The graph!
  • The main reason for this sharp rise in global
    temperatures since the 1850s is thought to be a
    steep increase in atmospheric carbon dioxide --
    CO2 -- from human use of fossil fuels. The
    mechanism of our atmosphere is that gases like
    CO2 and methane reflect the sun's heat back onto
    the earth, heating it. This natural greenhouse
    effect made the earth warm enough for life. Ice
    core records show that whenever CO2 has increased
    in the earth's past, so has temperature. In the
    last century atmospheric CO2 has risen steadily,
    and unnaturally, to above 370 parts per million,
    the highest level in more than 650,000 years.

5
Kyoto summit!
  • KYOTO, Japan (Dec. 10) - Following are the main
    elements of the newly approved Kyoto Protocol to
    the 1992 Climate Change Treaty, approved after 11
    days of arduous negotiations.
  • gtgt Reductions Thirty-eight industrialized
    nations are required to reduce their
    ''greenhouse'' gas emissions from 1990 levels
    between 2008 and 2012. The European Union would
    reduce them by 8 percent, the United States by 7
    percent and Japan by 6 percent.
  • gtgt Some would face smaller reductions, and a few
    would not face any now. As a group, the nations
    would cut back on the emissions of such gases by
    just more than 5 percent.
  • gtgt Gases Involved Emissions of six gases would
    be affected carbon dioxide, methane, nitrous
    oxide, and three halocarbons used as substitutes
    for ozone-damaging chlorofluorocarbons.
  • gtgt Offshore' Reductions Countries that do not
    meet their own emission targets can strike deals
    with nations that do better than required, to buy
    the excess ''quota.'' This may encourage
    reductions to be made where most cost-effective.
  • gtgt Enforcement A later meeting of the treaty
    parties will decide on ''appropriate and
    effective'' ways to deal with non-compliance.
  • gtgt Third World Developing countries, including
    major greenhouse gas emitters such as China and
    India, are asked to set voluntary reduction
    targets 
  • gtgt Next Step The accord approved by the Kyoto
    conference takes effect once it is ratified by 55
    nations, representing 55 percent of 1990 carbon
    dioxide emissions. It is binding on individual
    countries only after their governments' complete
    ratification.

6
TOGETHER!
  • Lets work together and try and make our world a
    safer place for us and everyone and everything
    around us!make youre life healthier,make the
    world a better place..
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