Answered By: Dominique Winn
Last Updated: Sep 13, 2017     Views: 6

United Nations Environmental Programme (UNEP)  

United Nations Framework Convention on Climate Change

Greenfile Ebsco database  

Environmental Studies and Policy Database  - use terms air quality, clean air, Germany

JSTOR  - Use terms such as air quality, pollution, Germany, compar* (with truncation symbol)

View Libguide on Sustainability for additional sources 

Keywords: 

  • pollution
  • contamination
  • atmosphere
  • degrad* (with the truncation symbol to reach “degraded, degradation, degrade”)  
     

 

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