global warming
DESCRIPTION
what global warming is?TRANSCRIPT
What is global warming?What is global warming?
How Global Warming Works?
Fossil fuels (coal, oil, natural gas)
Carbon Dioxide (CO2)
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.
Example of the Greenhouse Effect
What’s the difference between “global warming” and
“climate change”?
What’s the difference between “global warming” and
“climate change”?
DifferenceDifferenceGLOBAL 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 long-term changes in climate, including average temperature and precipitation.
Effects of Global WarmingEffects of Global WarmingIncreased Temperature
Habitat Damage and
Species Affected
Changes in Water Supply
Rising Sea Level
What’s the proof that global warming is taking place?
What’s the proof that global warming is taking place?
Portage GlacierPortage Glacier
1914 2010
• Alaska
Colorado RiverColorado River• Arizona
June 2002 Dec 2010
Why is global warming happening?
Why is global warming happening?
Burning of Fossil FuelsBurning of Fossil Fuels
Pollution from coal, natural gas, and oilPollution from coal, natural gas, and oil
Volcanoes Put Out less CO2Than Fossil Fuel Burning
Volcanoes Put Out less CO2Than Fossil Fuel Burning
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Fossil FuelVolcanoes
When did global warming start?When did global warming start?
Global Atmospheric Concentration of CO2Global Atmospheric Concentration of CO2
How is global warming measured?
How is global warming measured?
Ice Core DataIce Core Data
COCO22 Measurements Before 1958 - Antarctica Measurements Before 1958 - Antarctica
CO2 Atmospheric Measurements
CO2 Atmospheric Measurements
CO2 Measurements Since 1958 – Mauna Loa, HawaiiCO2 Measurements Since 1958 – Mauna Loa, Hawaii
Temperature CO2 Concentrations
1000 Years of CO2 and Global Warming
1000 Years of CO2 and Global Warming
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An increase in global temperature will cause sea levels to rise and will change the
amount and pattern of precipitation. Warming is expected to be
strongest in the Arctic and would be associated with continuing
retreat of glaciers.Other likely effects of the warming include more frequent occurrence of
extreme weather events including heatwaves, droughts and heavy rainfall
events, species extinctions due to shifting temperature regimes, and changes in
agricultural yields.
Countries into the agreementCountries into the agreement
Green indicates countries that have ratified the treaty; Dark green are Annex I and II countries that have ratified the treaty; Grey is not yet decided; Brown is no intention of
ratifying
Mitigation of Global WarmingMitigation of Global Warming
• Conservation Reduce energy needs
Recycling
• Alternate energy sources Nuclear
Wind
Geothermal
Hydroelectric
Solar
Global Warming Has Stopped?Global Warming Has Stopped?
-0.2
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1975 1980 1985 1990 1995 2000 2005Year
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2010
Global Warming:Global Warming:
Shifting GearsShifting Gears
2010Goal: Reductions in CO2 Per Year
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s C
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2010Reductions
in CO2
Per Year
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Produce electricity efficientlyUse electricity efficientlyVehicle efficiencySolar and Wind PowerBiofuelsCarbon capture and storage
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Kyoto protocol goal
We can stop global warming!We can stop global warming!
What’s being done now to reduce our emissions?
What’s being done now to reduce our emissions?
Solar Power Wind Power Fuel-Efficiency
What can you do to help What can you do to help solve the problem?solve the problem?
Simple Things To DoSimple 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.
Simple Things To DoSimple 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.
Keep the air filters on your Air Conditioner and
furnace clean.
Walk short distances instead of asking for a ride in the car.
Plant a tree. Recycle.
