The USDA UV-B Monitoring and Research Program is a program of the US Department of Agriculture's Cooperative State Research, Education and Extension Service (CSREES). The program was initiated in 1992, through a grant to Colorado State University, to provide information on the geographical distribution and temporal trends of UVB (ultraviolet -B) radiation in the United States. This information is critical to the assessment of the potential impacts of increasing ultraviolet radiation levels on agricultural crops and forests. Search WWW Search UV-B Natural Resource Ecology Laboratory Department 1499 Colorado State University Fort Collins, CO 80523-1499 Phone: (970) 491-3600 Fax: (970) 491-3601