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CENTRAL UNIVERSITY OF ECUADOR
Our Earth



• The Earth is like an island of life in the midst of
  empty space. the conditions of our world are
  perfect. The air, water and sun give us light and
  heat, and life.
Our Earth

• Our planet is surrounded by the atmosphere. It is
  a thin layer of gases (mainly oxygen and
  nitrogen) that extends to about 700 km over
  the Earth's surface. It is in the atmosphere, where
  keeps the planet warm and all weather
  phenomena occur. This layer also contains
  other chemical elements: nitrogen, carbon and
  cook, constantly transferred to Earth and used
  by living elements.
The greenhouse effect
         Earth atmosphere is
         composed by gases such as
         nitrogen and oxygen (needed
         for breathing).
         Other gases less called“
         greenhouse“
         as carbon dioxide, methane
         and nitrogen dioxide.
The greenhouse effect
           • In small
             concentrations the
             greenhouse gases are
             vital for our survival.
           • When sunlight reaches
             Earth, a little of this
             energy is reflected in the
             clouds, the rest passes
             through the atmosphere
             and reaches the ground.
             Thanks to this
             energy, plants can grow
             and develop.
The greenhouse effect

• But not all the sun's energy is
  harnessed on Earth, some is
  "returned" to the space. Since
  Earth is much cooler than
  the Sun, it can not return
  as heat and light. The are called
• INFRARED rays.
Greenhouse
             Greenhouse
             gases absorb this infrared
             energy like a sponge, thus
             warming the Earth's
             surface as the air around
             it. If there were no
             greenhouse gases, the
             planet would be about
             30 degrees colder than it is
             now! Under these
             conditions, life probably
             could never have developed.
• The sun's energy is
  trapped by gases in
  the same way that
  heat is
  trapped behind
  the glass of a
  greenhouse.
• The Sun will produces
  a series of nuclear
  reactions as result of the
  emission of huge
  amounts of energy. Very
  little of this energy
  reaches the Earth, and
  participates in a series
  of physical and chemical
  processes, essential for
  life.
Implications


• We know the consequences of the
  greenhouse effect, the question is, what we
  can expect for the next century? If do not
• Increase in average global temperature.
• Increased drought in some areas and
  floods in others.




             Drought   Floods
• Increased frequency of hurricane formation.
• Progressive melting of polar ice caps, resulting
  in rising sea levels.
• Increased rainfall on a global level but fewer
  days and more rain in torrents.
• Increase in number of hot days, resulting
  in heat waves.
What can you do?
• All the inhabitants of this planet, we must take
  action to stop climate changes and
  the greenhouse effect.
   We can replace aerosols, the main source of
  these gases, sprays that do not harm the
  environment.
• The methane from livestock waste can be
  recycled at a chemical plant to produce
  energy.




• We can plant a tree
At home, remember not to
            waste electricity.
• Use a heating system that uses the maximum
  energy and need more energy to produce
  heat.
• Reducing fuel consumption. Currently a
  car shows each year four times its weight
  in carbon dioxide.
• Turn off lights whenever you leave a room; Do
  not leave the TV or stereo on when not using .
• Do not let hot water run when washing.




• You can also give new uses to the
  bottles. Recycle glass, plastic, paper
  in this way we can save many trees.
• Always remember that every
  minute humans emit 48
  000 tons of carbon dioxide into
  the atmosphere.
• And we can all help reduce this
  amount.
Source of information

• http://www.portalplanetasedna.com.a
  r/efecto_invernadero1.htm
universidad central del ecuador

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universidad central del ecuador

  • 2.
  • 3. Our Earth • The Earth is like an island of life in the midst of empty space. the conditions of our world are perfect. The air, water and sun give us light and heat, and life.
  • 4. Our Earth • Our planet is surrounded by the atmosphere. It is a thin layer of gases (mainly oxygen and nitrogen) that extends to about 700 km over the Earth's surface. It is in the atmosphere, where keeps the planet warm and all weather phenomena occur. This layer also contains other chemical elements: nitrogen, carbon and cook, constantly transferred to Earth and used by living elements.
  • 5. The greenhouse effect Earth atmosphere is composed by gases such as nitrogen and oxygen (needed for breathing). Other gases less called“ greenhouse“ as carbon dioxide, methane and nitrogen dioxide.
  • 6. The greenhouse effect • In small concentrations the greenhouse gases are vital for our survival. • When sunlight reaches Earth, a little of this energy is reflected in the clouds, the rest passes through the atmosphere and reaches the ground. Thanks to this energy, plants can grow and develop.
  • 7. The greenhouse effect • But not all the sun's energy is harnessed on Earth, some is "returned" to the space. Since Earth is much cooler than the Sun, it can not return as heat and light. The are called • INFRARED rays.
  • 8. Greenhouse Greenhouse gases absorb this infrared energy like a sponge, thus warming the Earth's surface as the air around it. If there were no greenhouse gases, the planet would be about 30 degrees colder than it is now! Under these conditions, life probably could never have developed.
  • 9. • The sun's energy is trapped by gases in the same way that heat is trapped behind the glass of a greenhouse.
  • 10. • The Sun will produces a series of nuclear reactions as result of the emission of huge amounts of energy. Very little of this energy reaches the Earth, and participates in a series of physical and chemical processes, essential for life.
  • 11. Implications • We know the consequences of the greenhouse effect, the question is, what we can expect for the next century? If do not
  • 12. • Increase in average global temperature.
  • 13. • Increased drought in some areas and floods in others. Drought Floods
  • 14. • Increased frequency of hurricane formation.
  • 15. • Progressive melting of polar ice caps, resulting in rising sea levels.
  • 16. • Increased rainfall on a global level but fewer days and more rain in torrents.
  • 17. • Increase in number of hot days, resulting in heat waves.
  • 18. What can you do? • All the inhabitants of this planet, we must take action to stop climate changes and the greenhouse effect. We can replace aerosols, the main source of these gases, sprays that do not harm the environment.
  • 19. • The methane from livestock waste can be recycled at a chemical plant to produce energy. • We can plant a tree
  • 20. At home, remember not to waste electricity. • Use a heating system that uses the maximum energy and need more energy to produce heat.
  • 21. • Reducing fuel consumption. Currently a car shows each year four times its weight in carbon dioxide.
  • 22. • Turn off lights whenever you leave a room; Do not leave the TV or stereo on when not using .
  • 23. • Do not let hot water run when washing. • You can also give new uses to the bottles. Recycle glass, plastic, paper in this way we can save many trees.
  • 24. • Always remember that every minute humans emit 48 000 tons of carbon dioxide into the atmosphere. • And we can all help reduce this amount.
  • 25. Source of information • http://www.portalplanetasedna.com.a r/efecto_invernadero1.htm