Global Warming

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Global warming

W hat is global warming?
The changes in the surface air
temperature, referred to as the
global temperature, brought
about by the enhanced
greenhouse effect, which is
induced by emissions of
greenhouse gases into the air.

How Global Warming Works

Carbon Dioxide (CO2)

Fossil fuels (coal, oil, natural gas)

Example of the
Greenhouse Effect
The Sun’s energy
passes through the
car’s 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.

Difference
GLOBAL WARMING
is the increase of the
Earth’s average
surface temperature
due to a build-up of
greenhouse gases in
the atmosphere.

CLIMATE CHANGE
is a broader term
that refers to longterm changes in
climate, including
average
temperature and
precipitation.

Effects of Global Warming
Rising Sea Level

Increased Temperature

Habitat Damage and
Species Affected

Changes in Water Supply

W hat’s the proof that
global warming is
taking place?

Lets see

Portage Glacier
› Alaska

1914

2004

Colorado River
› Arizona

June 2002

Dec 2003

W hy is global
warming
happening?

Burning of Fossil Fuels

Pollution from coal,
natural gas, and oil

W hen did global
warming start?

When did global
warming start?
Global Warming graph

How is global warming
measured?

Ice Core Data

CO2 Measurements Before 1958 - Antarctica

CO2 Atmospheric
Measurements

CO2 Measurements Since 1958 – Mauna Loa,
Hawaii

1000 Years of CO2 and
Global Warming

CO2 Concentrations
Parts Per Million

Degree Celsius Increase

Temperature
(Northern Hemisphere)

Year

Year

Global
Warming:
Shifting Gears

U.S. emission

Billions of Metric Tons Carbon
Gigaton Carbon

Our Goal

2007
Reductions
in CO2
Per Year

W hat’s being done now to
reduce our emissions?

Fuel-Efficiency

Solar Power
Wind Power

What can you do to help
solve the problem?

Simple Things To Do
Turn off your computer or the TV
when you’re not using it.
Take shorter showers. Heating water uses energy.
Keep rooms cool by closing the blinds, shades, or
curtains.
Turn off the lights when you leave a room.
Use compact fluorescent bulbs.

Be Bulb Smart—Use CFLs
Incandescent

What’s the
difference?

Compact
Fluorescent

500 lbs.
of coal
•1,430 lbs. CO2 pollution avoided
•$30 saved

Simple Things To Do
Dress lightly when it’s hot instead of turning up
the air conditioning. Or use a fan.
Dress warmly when it’s 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.

Thank you

›Thank you

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