- http://www.enviropedia.org.uk
- http://www.air-quality.org.uk
- http://www.cleanair4kids.co.uk
- http://www.airquality.co.uk
- http://www.ecoiq.com/
- http://www.ecospeakers.com
- http://www.ecofootage.com
- http://www.ecophotos.com
- http://www.deb.uminho.pt/fontes/enviroinfo/
- http://www.cert.bham.ac.uk/inforesource/websources.htm
- http://members.aol.com/GeographyWorld
- http://www.Clipart.com
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