This document summarizes a student project on the greenhouse effect. It was worked on by three students, Dionisa Shabanllari, Gloria Avramushi, and Amanda Labi, in Class XI C. The document defines the greenhouse effect, explains how greenhouse gases like carbon dioxide and methane trap heat in the atmosphere similarly to how a greenhouse traps heat, and discusses the impacts of increased greenhouse gases on global temperatures and the potential for a runaway greenhouse effect. It also provides solutions for reducing greenhouse gas emissions and slowing climate change.

1. PROJECT
 THEME: “Greenhouse effect”
 Worked by: Dionisa Shabanllari, Gloria
Avramushi, Amanda Labi.
 Class : XI C

3. Introduction

4. GREEN HOUSE
EFFECT

5.  Most greenhouses look like a
clear mini glass house. They
are used to grow plants in
any environment.
Greenhouses work because
when the sun comes out the
green house can trap the
sunlight and use it to grow
plants. The glass panels trap
as much sunlight as possible
but keeps heat in. This
causes the greenhouse to
heat up and help the plants
grow.

6. Like a greenhouse the
earths atmosphere
traps heat and
energy from the sun.

7. Earth’s atmosphere is slightly warmer
than what it should be due to direct
solar heating because of a mild case of
greenhouse effect…
• The ground is heated by visible
and (some) infrared light from the
Sun.
• The heated surface emits infrared
light.
• The majority of Earth’s
atmosphere (N2 and O2) are not
good greenhouse gas.
• The small amount of greenhouse
gases (H2O, CO2) traps (absorb
and re-emit) the infrared radiation,
increasing the temperature of the
atmosphere…

8. incoming
radiation
Solar energy reaches the Earth’s surface

9. incoming
radiation
infrared radiation
Earth’s surface warms, emits radiation

10. incoming
radiation
infrared radiation
greenhouse
gases
Greenhouse gases absorb IR leaving the surface

11. incoming
radiation
infrared radiation
greenhouse
gases
Gases are energized, then emit radiation (IR)

12. incoming
radiation
infrared radiation
greenhouse
gases
Some of this IR reaches the planet surface, warming it further

15. b

17.  An increase in atmospheric temperature
(human or natural origin) will lead to the
increase in the water vapor content of the
troposphere.
 Because water vapor is a strong greenhouse
gas, the increase in H2O vapor in turn
causes enhanced greenhouse effect, raising
the temperature more.
 Higher atmospheric temperature will cause
more evaporation of water
 Which leads to even higher temperature…
 Runaway Green House Effect!

21.  The primary components of Earth’s atmosphere, N2 and
O2 do not have absorption in the IR wavelength range,
therefore, do not have a significant role in setting the
surface temperature of the planet…
 Greenhouse gas are efficient in absorbing IR light…
The most important greenhouse gases are:
 H2O – Water vapor.
 CO2 – Carbon Dioxide
 CH4 – methane
 The most abundant greenhouse gas in Earth’s
atmosphere is water vapor. Most of the
greenhouse heating of Earth’s atmosphere is due
to Water vapor absorption of IR radiation emitted
by Earth, and then transferring the energy to the
surrounding air molecule

22. The following pie chart displays the percent of each
gas
which plays a role in the greenhouse effect.

23.  Burning natural gasses
 Deforestation
 Population growth

25. Without the greenhouse effect, the Earth would
not be able to support life. But if the greenhouse
effect becomes too strong, the earth will be too
hot to support life. Even a little to much heat
could hurt the animals, plants, and everything
else on the planet. Without the gasses that
surround the planet, heat would escape back into
space, causing the earths average tempter to be
about 60 degrees colder.

26. If we were to move the Earth closer to the Sun, like where
Venus is now, then we would suffer the runaway greenhouse
effect as well, lose all the water, and become hot like Venus.

27. Mars
Atmosphere: mass <1% earth’s
GH Gases: >80% CO2
Sfc. Temp.: -47C
GH Effect: 10C
FAR TOO COLD!
Other planets also have Greenhouse Effects,
but these are unsuitable for life
Earth
GH Gases: ~0.04% CO2
~ 1% H2O
Sfc. Temp.: 15C
GH Effect: 33C
NOT BAD!
Venus Atmosphere: mass 90x
earth’s
GH Gases: >90% CO2
Sfc. Temp.: 477C
GH Effect: 523C
FAR TOO HOT!
Sun

28.  Greenhouse gases absorb infrared radiation
and prevent it from escaping to space.
 Carbon dioxide, methane, and nitrous oxide
are very good
 At capturing energy at wavelengths that
other compounds

29. PHOTOS :

35. SOLUTIONS :
 Reduce the use of materials which produce
greenhouse gases.
 Avoid the burning of fossil fuel and household
residue.
 Upgrade infrastructures.
 Afforestation.
 Using alternative sources of energy.
 Using eco-friendly materials.
 Incineration plant should be established.
 Pollution should be controlled……

36. CONCLUSION:
 Human, Oh, human
 Please do something.
 A little effort, a little care
 Put on a little effort and there will
 not be heat everywhere.
 There are not many forests,
 There are not many trees, Green
 house effect, Oh stop it please!!!!
 Stop littering, stop polluting
 Stop throwing rubbish into the
 sea;
 The oceans are dying,
 The earth is crying!!!!
 Save the planet,
 Save it please

37. WORK CITATIONS :
 “What Is the Greenhouse Effect?" Weather Questions and Answers. Web.
8 Jan. 2011.
<http://www.weatherquestions.com/What_is_the_greenhouse_effect.htm>.
 D'Silva, Roy. "Causes of the Greenhouse Effect." Buzzle Web Portal:
Intelligent Life on the Web. Web. 7 Jan. 2011.
<http://www.buzzle.com/articles/causes-greenhouse-effect.html>.
 "The Greenhouse Effect's Impact." How to Prevent Global Warming: An
Easy Way to Reduce Your Impact. Web. 8 Jan. 2011.
<http://www.acoolerclimate.com/the-greenhouse-effects-impact/>.
 "The Greenhouse Effect." Test Page for Apache Installation. Web. 8 Jan.
2011. <http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/grnhse.html>.
 Sharon. "10 Ways to Reduce Greenhouse Gases." Web log post. Town of
East Gwillimbury. Web.
<http://www.eastgwillimbury.ca/Environment/10_Ways_to_Reduce_Greenho
use_Gases.htm>.
 Web.
<http://wiki.answers.com/Q/How_are_we_to_prevent_the_greenhouse_effe
ct>.

38. While doing this, we realized that we ,humans are the main cause
of accumulation of greenhouse gases. Yet instead of realizing our
mistakes we’re busy putting the blame on others. We have made a
promise that we will do whatever we can and also motivate others
to work on this field. What about you…………………?
So once again Thank you…