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• American Council for an Energy Efficient Economy http://aceee.org
   

• American Lung Association www.lungusa.org 
  

• Clean Air Task Force www.cleartheair.org and www.clnatf.org 
  

• Clear the Air's National Campaign Against Dirty Power cta.policy.net
  

• Clear the Air's TN Campaign Against Dirty Power cta.policy.net/solutions/tn
  

• EPA Global Warming Site www.epa.gov/globalwarming 
  

• Intergovernmental Panel on Climate Change www.ipcc.ch
  

• Sierra Club Stop Global Warming Campaign www.sierraclub.org 
  

• Southern Alliance for Clean Energy www.cleanenergy.org 
  

• Southern Alliance for Clean Energy, TN www.cleanenergy.org/states/tn/http://www.tectn.org/ 
  

• Tennessee Valley Authority (TVA) www.tva.gov 
  

• The Climate Institute www.climate.org 
  

• Trust for America’s Health www.healthyamericans.org
   

• U.S. Public Interest Research Group (PIRG) www.uspirg.org