Why do leaves change color and turn red?

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  • "Autumn Color is Nature's Sunscreen, Say Researchers." University of Wis¬≠consin-Madison. ScienceDaily. Oct. 1, 2001. (Sept. 8, 2008)http://www.sciencedaily.com/releases/2001/10/011001072513.htm
  • Haberman, Shir. "Leaf peepers storm N.H., Maine." Seacoastonline.com. Oct. 9, 2007. (Sept. 12, 2008)http://www.seacoastonline.com/apps/pbcs.dll/article?AID=/20071009/NEWS/710 090335
  • "New England's Fall Foliage." Discover New England. (Sept. 9, 2008)http://www.discovernewengland.org/foliage/index.shtml
  • Nye, Bill. "Ask Bill Nye." MSN Encarta. 2008. (Sept. 8, 2008)http://encarta.msn.com/encnet/features/columns/?article=bnfallingleaves
  • Shakhashiri, Bassam Z. "The Chemistry of Autumn Colors." University of Wisconsin-Madison. (Sept. 8, 2008)http://scifun.chem.wisc.edu/CHEMWEEK/fallcolr/fallcolr.html
  • "Why Do Autumn Leaves Turn Red? Soil May Dictate Fall Colors." Science Daily. Oct. 29, 2007. (Sept. 8, 2008)http://www.sciencedaily.com/releases/2007/10/071025112042.htm
  • "Why do leaves change color?" Environmental Education for Kids. Wisconsin Department of Natural Resources. September 2008. (Sept. 8, 2008)http://www.dnr.state.wi.us/org/caer/ce/eek/veg/trees/treestruecolor.htm