Millennium Ecosystem Assessment - 2005
.:: Increase Of Nitrogen Usage ::.
Date: March 2005
Photographer: Millennium Ecosystem Assessment
http://www.millenniumassessment.org
![Photo: Increase Of Nitrogen Usage](http://www.caithness.org/photos/nature/millenniumecosystem/16.jpg)
Date: March 2005
Photographer: Millennium Ecosystem Assessment
http://www.millenniumassessment.org