Save the files with asterisks ("*") to your computer.
Simply open the other files. They are read-only files.

Pre-Unit Activities *
Excel Tutorial *
Unit Directions
Response Sheet *
Presentation template *
Extension Activity *

Background Readings

• Background Information
• "Basics you want to know about the climate"
• Excerpts from the National Oceanic and Atmospheric Administration's Web site. "Global Warming: Frequently Asked Questions"

Temperature Data (all in Excel) (for Part A)

• Phoenix Min *
• Phoenix Max *

 A reading about access to the temperature data base

• Navigating the Global Historical Climate Network data at the National Geophysical Data Center

 Readings about air pollutants that affect climate (for Part C)

• EPA overview about greenhouse gases and emissions
• "Paleo perspective on global warming" (describes how ozone acts as a greenhouse gas in the troposphere)

Readings about the urban heat island effect (for Extension Activity)

• "The Arizona Republic On the Urban Heat Island Effect" (which describes what people say about how the heat island effect affects Phoenix)
• "Arizona temps on the rise in winter for last 70 years" (about statewide changes in climate)
• Excerpts from research article about decreasing gaps between minimum and maximum temperatures around the world ("A New Perspective on Recent Global Warming: Asymmetric Trends of Daily Maximum and Minimum Temperature")