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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