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What is global warming?
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How Global Warming Works
Fossil fuels (coal, oil, natural gas)
Carbon Dioxide (CO2
)
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The Suns energy
passes through the
cars windshield.
This energy (heat)
is trapped inside
the car and cannot
pass back through
the windshield,
causing the inside
of the car to warm
up.
Example of the
Greenhouse Effect
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Whats the difference
between global warmingand climate change?
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Difference
GLOBAL WARMING
is the increase of the
Earths average
surface temperaturedue to a build-up of
greenhouse gases in
the atmosphere.
CLIMATE CHANGE
is a broader term that
refers to long-term
changes in climate,including average
temperature and
precipitation.
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Effects of Global Warming
Increased Temperature
Habitat Damage andChanges in Water Supply
Rising Sea Level
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Whats the proof thatglobal warming is taking
place?
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Portage Glacier
1914 2004
Alaska
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Colorado River
Arizona
June 2002 Dec 2003
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Why is global warminghappening?
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Burning of Fossil Fuels
Pollution from coal,
natural gas, and oil
Pollution from coal,
natural gas, and oil
Pollution from coal,
natural gas, and oil
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When did global
warming start?
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Global Atmospheric Concentration of CO2
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How is global warming
measured?
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Ice Core DataIce Core Data
COCO22 Measurements Before 1958 - AntarcticaMeasurements Before 1958 - Antarctica
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CO2 Atmospheric
Measurements
CO2 Measurements Since 1958 Mauna Loa, Hawaii
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Temperature
(Northern Hemisphere) CO2 Concentrations
1000 Years of CO2 and
Global Warming
Degree
CelsiusIncr
ease
PartsPerM
illion
Year Year
1000
1200
1400
1600
1800
2000
1000
1200
1400
1600
1800
2000
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GlobalGlobal
Warming:Warming:
Shifting GearsShifting Gears
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2007
Goal:
Reductions inCO2 Per Year
Billions
ofMetricTo
Carbon
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2007 Reductionsin CO2Per Year
GigatonCarbon
Produce electricityefficiently
Use electricityefficiently
Vehicle efficiency
Solar and WindPower
Biofuels
Carbon capture
and storageBillions
ofMetricTo
Carbon
Our Goal
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Whats being done now to
reduce our emissions?
Solar PowerWind Power Fuel-Efficiency
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We can stop global warming!
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What can you do to helpWhat can you do to help
solve the problem?solve the problem?
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Be Bulb SmartUse CFLsIncandescent CompactFluorescent
500 lbs.of coal
Whats the
difference?
1,430 lbs. CO2 pollution avoided
$30 saved
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Simple Things To Do
Dress lightly when its hot instead of turning up
the air conditioning. Or use a fan.
Dress warmly when its cold instead of turning
up the heat.
Offer to help your parents keep the air filters on
your AC and furnace clean.
Walk short distances instead of asking for a
ride in the car.
Plant a tree. Recycle.
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National Wildlife Federation 2007