9.3.2. Climate Change Part 1-2

9.3.2. Climate Change Part 1-2

By LaToya Washington

Objectives

• ​make conclusions about global temperature using various indicators as evidence

• ​

Subject | Subject

Some text here about the topic of discussion

Open Ended

RECAP TIME!

What is climate?

​- Robert A. Heinlein

“Climate is what we expect, weather is what we get.”

the average weather conditions in an area over a long period of time.

​

​

Climate is...

Climate is...

determined by a variety of factors that include latitude, global air circulation patterns, oceanic circulation patterns, topography, solar activity, and volcanic activity.

The most important of these factors is latitude, or distance from the equator.​

• ​less direct sunlight

• lower​ avg temps

  larger temp range

• more direct sunlight

• higher​ avg temps

  smaller temp range

Multiple Choice

QUICK CHECK!

Climate in a region is

• the long-term, prevailing atmospheric conditions.

• determined only by seasonal daylight hours.

• the atmospheric conditions on a given day.

• never affected by ocean currents.

Multiple Choice

QUICK CHECK!

Latitude strongly influences climate because _____ solar energy falls on areas that are closer to the equator than to the poles.

• less

• the same amount of

• more

• sometimes less

Multiple Choice

QUICK CHECK!

Which is an example of climate?

• A cold front is expected to pass over the area.

• Houston experiences hot, wet, and humid summers.

• It will be in the 20s at the end of the week.

• It is currently 50 degrees in Dallas.

Poll

Do you think the average seasonal temperatures have changed during the past few years?

• yes

• no

• not sure

Poll

How do you think recent temperatures compare with temperatures from thousands or millions of years ago?

• Recent temps are higher.

• Recent temperatures are lower.

• Recent temperatures are the same.

Climate change: Earth's giant game of Tetris - Joss Fong | TED-Ed

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Multiple Choice

How does the greenhouse effect influence the climate on Earth?

• It prevents Earth from getting too cold

• It prevents Earth from getting too hot

• It traps heat from the sun

• It prevents Earth from getting too cold AND It traps heat from the sun

Multiple Choice

How much has CO2 increased in the atmosphere since 1750?

• 15%

• 20%

• 40%

• 65%

Multiple Choice

What role does the ocean play in the carbon cycle?

• It releases CO2 into the air

• It absorbs CO2 from the air

• Neither releases or absorbs CO2

• Both releases and absorbs CO2

What evidence is there to show there is a rise in global temperature?

Open Ended

What evidence is there to show there is a rise in global temperature?

What do you notice about this ~25 year segment?

​

What conclusion about temperature can you draw from this 25-year segment?

What do you notice about this ~25 year segment?

​

What conclusion about temperature can you draw from this 25-year segment?

What do you notice about this ~25 year segment?

​

What conclusion about temperature can you draw from this 25-year segment?

What do you notice about this ~25 year segment?

​

What conclusion about temperature can you draw from this 25-year segment?

What do you notice about this ~25 year segment?

​

What conclusion about temperature can you draw from this 25-year segment?

Open Ended

Why is it important to look at change over time (years, decades, centuries)?

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How would you describe the difference in global temperatures in 1909 and 1998?

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Besides looking at a thermometer, what are things you see that indicate changes in temperature?

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

Poll

Does this figure represent climate data or weather data?

• climate

• weather

​Does this figure represent climate data or weather data?

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

​Does this figure represent climate data or weather data?

Poll

Does this figure represent climate data or weather data?

• climate

• weather

Open Ended

When looking at the figures all together, what conclusions can be drawn?

These figures, when put together, provide the evidence for what is being called global climate change, the increase in the

world’s average temperature and precipitation.

​

The Mendenhall Glacier in Juneau, AK is a good visual example of glacier recession due to warming temperatures.

Mendenhall Glacier

​The western U.S. continues to experience drier and hotter summers over the past few decades. Evaporation alone accounts for six feet of water loss for Lake Mead each year. That may not seem like much, but six feet of water loss equals 300 billion gallons of water gone for human use and hydropower.

Lake Mead

Open Ended

What things have happened in the past 135 years that could cause the global temperature changes that you see? 

Causes of climate change | AdaptNSW

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