8. Threatened Wildlife: Polar Bears Crosbie, Dan. August 2004. Environment Canada. Accessed 8 September 2006 <http://ice-glaces.ec.gc.ca/content_contenu/images/bearours1.jpg>. Polar bears in the Beaufort Sea, Canada, August 2004. Imagine... Safeguarding our Natural World
15. Delay Is Not An Option Much of the CO2 we emit lingers in the atmosphere for a century or more, creating an almost irreversible impact. Questions? Email alerts@nwf.org
16. We Need to “Cap” Pollution Fossil Fuels Carbon Dioxide (CO 2 )
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23. 6 Air Pollutants Down 53% Clean Air Act We’ve Cleaned the Air Before GDP: Up 160% Population: Up 40% Questions? Email alerts@nwf.org