Effects of Global Warming (With Music)
Transcript of Effects of Global Warming (With Music)
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What 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.
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Exhaust from cars Major source of Carbon dioxide in the
atmosphere
A 12 miles per gallon vehicle in the city
will emit an estimated 800 pounds of
carbon dioxide over a distance of 500
city miles
Exhaust from airplanes
Aviation industry causes 3.5 percent of
global temperature Could rise to 15 percent by 2050
Carbon dioxide from constructions
Building structures account for about
12% of carbon dioxide emissions.
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Deforestation
Causes about 20-25% of all carbon emissions entering theatmosphere
About 34 million acres of trees are lost each year
Millions of acres of rainforests are lost every year, equivalent in
area to the size of Italy
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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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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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When did global
warming start?
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How is global warming
measured?
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Ice Core Data
CO2 Measurements Before 1958 - Antarctica
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Global
Warming:
Shifting Gears
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U.S. emission
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2007 Reductionsin CO2Per Year
GigatonCarbon
BillionsofMetricT
onsCarbon
Our Goal
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What can you do to help
solve the problem?
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Simple Things To Do
Turn off your computer or the TV
when youre 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.
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Incandescent 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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Thank you