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

12-9-20

Climates• Polar- cold and

windy

• Temperate-moderate temperature and preicipitation

• Arid –warm and dry • Humid warm and moist

12-9-20

Climate zones

Equatorial

Tropical grassland

Hot dessert

Mediterranean

Maritime

Tundra

12-9-20

Climatograph

• The amount of precipitation and the temperature throughout the year

•

12-9-20

Water cycle

12-9-20

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

12-9-20

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

12-9-20

The oceans absorb carbon dioxide which turns into carbonic acid. This lowers the pH of the ocean killing the coral reefs.

Ocean acidification

12-9-20

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