Works+Cited+3

    **Works Cited**  “Air Pollution.” __Family Doctor.org__. 22 Apr. 2008 < http://familydoctor.org/‌online/‌famdocen/‌home/‌common/‌asthma/‌triggers/‌085.html>. __Air Pollution in__ __China__ Photograph. AP Photo Archive. __Power Library Database__. Hempfield High School Lib. Landisville, Pa. 29, April 2008. http://apimages.ap.org/default.aspx.

 Black, Richard. “More Species Slide to Extinction.” __BBC News__. 22 Apr. 2008 <[|http://news.bbc.co.uk/‌2/‌hi/‌science/‌nature/‌4963526.stm>.]

Campbell, Neil A., and Jane B. Reece. __Essential Biology__. Ed. Beth Wilbur and Erin Milligan. San Francisco: Addison Wesley Longman, Inc., 2001.  “Cost of greenhouse gas emissions reducitions.” __Berkele Lab__. Lawerence Berkeley National Laboratory. 29 Apr. 2008 <[|http://enduse.lbl.gov/‌Projects/‌GHGcosts.html>.] <span style="FONT-FAMILY: 'Times New Roman', Times, serif"> “Indoor and Outdoor Air Pollution.” __Lawrence Berkeley National Laboratory__. 30 Apr. 2008 <[|http://www.lbl.gov/‌Education/‌ELSI/‌ELSI.html>.]

__Introduction to Ecology: Ecosystems and Biomes__. Discovery Education School. __unitedstreaming__. 2008. Discovery Education. 11 May 2008 <[|http://www.unitedstreaming.com/>.]

Nissley, Jeremy. Personal interview. 5 May 2008. <span style="DISPLAY: block; FONT-SIZE: 90%; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left"> <span style="FONT-FAMILY: 'Times New Roman', Times, serif">“Pollution.” __MSN Encarta__. 2007. 23 Apr. 2008 <[|http://encarta.msn.com/‌encyclopedia_761570933/‌Pollution.html>.] __ <span style="FONT-FAMILY: 'Times New Roman', Times, serif">Pollution __ <span style="FONT-FAMILY: 'Times New Roman', Times, serif">__unitedstreaming__. Discovery Education. 22 Apr. 2008 <[|http://www.unitedstreaming.com/>.] <span style="DISPLAY: block; FONT-SIZE: 90%; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left"> <span style="FONT-FAMILY: 'Times New Roman', Times, serif">Reece, Jane B, and Neil A Campbell. __Essential Biology__. New York: Benjamin Cummings, 2001.

Poor boys at a Manila garbage dump, 1978.. IRC. 2005. unitedstreaming. 11 May 2008 <http://streaming.discoveryeducation.com/>

"Waste." __Green Peace International__. 1 May 2008 <http://www.greenpeace.org/

international/campaigns/nuclear/waste>. <span style="DISPLAY: block; FONT-SIZE: 90%; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left"><span style="FONT-FAMILY: 'Times New Roman', Times, serif">“What is acid rain?” __U.S. Environmental Protection Agency__. 4 Apr. 2008. 21 Apr. 2008 <[|http://www.epa.gov/‌acidrain/>.]