Arizona Native Plant Society - Nonprofit organization devoted to Arizona's native plants. Arizona Department of Environmental Quality - Protects public health and the environment in Arizona. Information about air, water and waste programs in the state as well as regulations. Arizona Crop Information Site - Provides independent information on research-based desert crop production and protection. From the University of Arizona. Arizona Wilderness Coalition - Organization of groups and individuals committed to the protection and restoration of wilderness lands in the state. Southeastern Arizona Bird Observatory - Information on birds and birding in southeastern Arizona. Arizona Community Tree Council - Non-profit organization promoting exchange of information about trees and the essential role they play in the wellbeing of Arizona communities. Newsletter and information about training and volunteering. The Mount Graham Coalition - News and information about efforts by Native Americans, scientists, conservationists and citizens to resist installation of telescopes and other development on Mount Graham's desert "Sky-Island" ecosystem. Arizona Trappers Association - A non-profit group that prides itself on humanely controlling today's wildlife populations and educating the public about the mis-representation of trapping today. Climate of Arizona - Narrative written by the State Climatologists and published by the National Climatic Data Center. Arizona Meteorites - Catalog of meteorites found in the state, including map of fall locations. For each find, there is a picture and description. Arizona through the Eyes of a Snowbird - A visual tour of the Sonoran Desert cacti and other Arizona scenes. Common Plants of the Verde Valley and Sedona - A photographic guide to the plants of the Verde Valley and Sedona. Photos and descriptions of more than 100 species. Illustrated Guide to Arizona Weeds - On-line version of the book by Kittie F Parker. Includes descriptions and illustrations of weed species. Arizona Riparian Council - Provides for the exchange of information on the status, protection, and management of riparian systems in the State. Includes information on meeting locations, newsletters, and issues.