Jose Hernandez powerpoint on global Warming for graduation 6/5/14

1. Global Warming
By: Jose Hernandez

2. What is Global Warming
• Global warming is the result of the earth heat temperature
heating up
• Most recently, temperatures have been rising, causing
more issues for the environment, animals, animal habitats,
and humans

3. Causes of Global Warming
• CO2 emissions
• Urbanization
• Industrialization
• Pollution

4. Greenhouse Effect
• Most climate scientists agree the
main cause of the current global
warming trend is human expansion
of the "greenhouse effect"–
• Certain gases in the atmosphere
block heat from escaping.

5. Gases that Contribute to the
Greenhouse Effect Include:
Water vapor:
The most abundant
greenhouse gas, but
importantly, it acts as
a feedback to the
climate.

6. Gases that Contribute to the
Greenhouse Effect Include:
Methane:
• A hydrocarbon gas
produced both
through natural
sources and human
activities
Carbon dioxide (CO2):
Humans have
increased
atmospheric
CO2 concentration by
a third since the
Industrial Revolution
began.

7. Gases that contribute to the
greenhouse effect include:
• Nitrous oxide. A powerful greenhouse gas produced
by soil cultivation practices
• Chlorofluorocarbons (CFCs). Synthetic compounds of
entirely of industrial origin used in a number of
applications

8. On Earth, Human Activities are
Changing the Natural Greenhouse
Over the last century the
burning of fossil fuels
like coal and oil has
increased the
concentration of
atmospheric carbon
dioxide (CO2).

9. Effects of Increased Greenhouse
Gases
• On average, Earth will become warmer.
• Some regions may welcome warmer temperatures,
but others may not.

10. Warmer conditions will probably lead to more
evaporation and precipitation overall, but individual
regions will vary, some becoming wetter and others
dryer.

11. Meanwhile, some crops and other plants may respond
favorably to increased atmospheric CO2, growing more
vigorously and using water more efficiently.

12. Types of Pollution
• Air pollution
• Water pollution
• Soil pollution
• Noise pollution
• Radioactive pollution
• Thermal pollution

13. Air Pollution
• Air Pollution – is defined as any contamination of
the atmosphere that disturbs the natural
composition and chemistry of the air

14. Water Pollution
• Water pollution involves any contaminated water,
whether from chemical, particulate, or bacterial
matter that degrades the water's quality and purity

15. Soil Pollution
• Soil pollution aka land pollution, is contamination of
the soil that prevents natural growth and balance in
the land whether it is used for cultivation, habitation,
or a wildlife preserve. An example is landfills.

16. Radioactive Pollution
Radioactive pollution is rare but extremely
dangerous, and even deadly, when it occurs
Because of its intensity and the difficulty of
reversing damage, there are strict government
regulations to control radioactive pollution

17. Thermal Pollution
• Thermal pollution is excess heat
that creates undesirable effects
over long periods of time. It
usually comes from:
 power plants,
 urban sprawl,
 air pollution particulates that trap
heat,
 deforestation,
 loss of temperature moderating
water supplies.

18. Natural Cycles of Nature
• Volcanic eruption
• Volcanos are one of the main natural instigators of
global warming. The role of volcanic eruptions on each
climate effect is described below. They contribute to
ozone depletion, as well as to both cooling and
warming of the earth's atmosphere.

19. Polar Wobble
• Polar wobble is another natural way that creates global
warming.
• The theory of “Polar Wobble” suggests that there have
been geologically rapid shifts in the relative positions of
the poles and the axis of rotation of the Earth, creating
calamities such as floods and tectonic events.

20. Natural Cycles of Nature
• There are other natural factors leading to global
warming but these are two of the most important

21. The Effects of Global Warming
• Rising sea levels
• Loss of habitats
• Extreme weather conditions with rising
temperatures, and other hazards such as forest fires.
• The melting of the glaciers and ice shelves all over the
world could cause global warming to accelerate
because less and less of the sun’s energy would be
reflected away from the earth.

23. SOLUTIONS
Even though Global Warming is a problem there are
also solutions to help stop or at least slow down its
process.

24. Political Solutions
• Countries can work together to monitor CO2
emissions
• They can create treaties in which each country
agrees to cut down on the use of fossil fuels
• They can also work together to create sustainable

25. Political Solutions
• Countries can work together to create laws and
regulations that relate to climate change.
• Systems such as the Cap and Trade model in which
carbon trading markets can be operated.
• Countries can also try to inspire the media and the
public to fight global warming.

26. Physical Solutions
You can also do simple things at home to cut down on
all the CO2:
– unplugging TVs, stereos equipment, computers, battery
chargers and a lot of other technology gadgets

27. If we don’t do anything to try to solve this major issue
it may mean the extinction of all humanity and pretty
much destroy the earth as we know it.

28. • Past human actions have already committed the
planet to a warmer future. When we extract and burn
fossil fuels such as coal or petroleum, we cause the
release of carbon dioxide (CO2) and other heat-
trapping "greenhouse gases" into the atmosphere.

29. Though natural amounts of CO2 have varied from 180
to 300 parts per million (ppm), today's CO2 levels are
around 400 ppm. That's 40% more than the highest
natural levels over the past 800,000 years. We also can
tell that the additional CO2 in the atmosphere comes
mainly from coal and oil because the chemical
composition of the CO2 contains a unique fingerprint.

30. Global warming is no longer a theory and it is no
longer something that only future generations will
face. Changes to our planet are being documented
daily in the media.

31. If we could try to make the small and large changes
to our lifestyles; if we could lessen our dependence
on fossil fuels, if we could learn to create less waste
and live within the laws of nature – then maybe we
could turn this ship of doom around.

32. Conclusion
We are already witnessing the signs of global warming
in rising sea levels, rising temperatures, and extreme
weather conditions; let us hope that we can rise up and
change our world now before it is too late and we are
engulfed in this phenomenon that has taken us by
storm.