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The following slides are for use with UCAR Center for Science Education’s Feeling the Heat classroom activity

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Feeling the Heat

This presentation is full of data and images to get you thinking. Discuss as a class the patterns you see and the reasons for those patterns.

Look for patterns in the data: How have heat waves and average temperature changed over time in Los Angeles, CA?

Consider reasons for patterns: How has global climate changed over time? How has Los Angeles changes over time, and how might that impact the heat island effect?

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The number of heat waves in Los Angeles, CA 1900-2008.

Do you see a pattern?

How have heat waves changed through time?

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Duration of heat waves in Los Angeles, CA (measured in days.)

Has there been a change through time?

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This graph shows the average temperature for each year in Los Angeles, CA.

How has the temperature in Los Angeles changed over time?

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The highest temperatures are found in the most dense part of a city. That’s the urban heat island effect.

The next 3 slides show how Los Angeles has changed over time. How do you think the heat island effect has changed as the city changed?

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Los Angeles, CA in 1877. East LA is on the left and West LA is on the right. (Library of Congress)

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Los Angeles, CA in 1909. (Library of Congress)

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Los Angeles, CA in 2002. (NASA/JPL)

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Population change in Los Angeles, CA since 1890

(Data from US Census Bureau)