Lots More Information

Related HowStuffWorks Articles

• ­Ozone Pollution Quiz
• How Light Works
• How Vision Works
• How Colorblindness Works
• How the Sun Works
• How Ozone Pollution Works

More Great Links

• Georgia State University HyperPhysics: Red Sunset
• NOAA: The Colors of Twilight and Sunset

Sources

• Air Pollution Causes and Effects. Health and Energy. http://healtha­ndenergy.com/air_pollution_causes.htm
• The Colors of Twilight and Sunset. NOAA. http://www.spc.noaa.gov/publications/corfidi/sunset/
• Fact or Fiction?: Smog Creates Beautiful Sunsets. Scientific American. http://www.sciam.com/article.cfm?id=fact-or-fiction-smog-creates-beautiful-sunsets
• Red Sunset. HyperPhysics: Georgia State University. http://hyperphysics.phy-astr.gsu.edu/hbase/atmos/redsun.html
• Sky Color. Department of Earth and Atmospheric Sciences. City College of New York. http://www.sci.ccny.cuny.edu/~stan/skycolor.ppt
• Why is the sky blue? Why are sunsets red? Optical Society of America. http://www.opticsforkids.org/tutorials/whyskyblue.html

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