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Review Climate Change
Weather vs Climate
• Weather is the daily atmospheric conditions including temperature and precipitation
• Climate is the average weather over at least 30 years
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Climates• Polar- cold and
windy
• Temperate-moderate temperature and preicipitation
• Arid –warm and dry • Humid warm and moist
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Climate zones
Equatorial
Tropical grassland
Hot dessert
Mediterranean
Maritime
Tundra
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Climatograph
• The amount of precipitation and the temperature throughout the year
•
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Water cycle
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Types of rainTypes of rain
Seasons
• The tilt and the rotation around the sun
Heat transfer methods Radiation, conduction, convection
Absorption of light black vs white
Definition
Albedo-the fraction of light that is reflected b y the surface of an object
Ocean current are cause by the hot water and the cold water at the poles starting a convection current. Revolving earth
Major influences
on Climate
• Atmosphere, Hydrosphere
land masses
Evidence of climate changeice cores, tree analysis
(Dendrochronology),fossils, sediment analysis
•
Greenhouse Effect (natural and Anthropogenic)
Carbon cycle
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3 greenhouse gases
Methane
HalocarbonsCarbon dioxide
Indicators and effects of climate change
• Polar and glacial ice
• Rising sea level
• Health
• Weather
• Desertification
• Storm intensity and frequency
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The oceans absorb carbon dioxide which turns into carbonic acid. This lowers the pH of the ocean killing the coral reefs.
Ocean acidification
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What can you do?????????
12-9-20
increase in temperature
melting ice
decrease in albedo
increased absorption of sunlight by Earth’s surface
increasedevaporation
cloud formation
decreased absorption of sunlightBy Earth’s surface
increased absorption of IR radiation
decrease in temperature
increaseIn ice
increase in albedo
positive feedback loop
positive feedback loop
positive feedbackloop
negative feedback loop
increase in temperature
melting ice
decrease in albedo
increased absorption of sunlight by Earth’s surface
increasedevaporation
cloud formation
decreased absorption of sunlightBy Earth’s surface
increased absorption of IR radiation
decrease in temperature
increaseIn ice
increase in albedo
positive feedback loop
positive feedback loop
positive feedbackloop
negative feedback loop
increase in temperature
melting ice
decrease in albedo
increased absorption of sunlight by Earth’s surface
increasedevaporation
cloud formation
decreased absorption of sunlightBy Earth’s surface
increased absorption of IR radiation
decrease in temperature
increaseIn ice
increase in albedo
positive feedback loop
positive feedback loop
positive feedbackloop
negative feedback loop
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