Learn about nature conservation in Arizona, including environmental issues and resources from The Nature Conservancy. Start exploring Arizona!Implementing pollution control and natural resource conservation programs. These efforts are summarized in the city's sustainability web site Phoenix. Important Conservation Resources. We provide voluntary, cost-effective programs and technical assistance to landowners to conserve, protect and improve soil, water, air, plants and animals. Indians and Alaska Natives (Working Group). Saguaro cacti are a keystone species in the Sonoran desert, providing a variety of resources for desert fauna. ACE EPIC individual placements (internships) and fellowships provide young adults ages 18-30 (up to age 35 for veterans) with focused, hands-on opportunities. The City of Phoenix has been delivering clean, reliable water supplies to homes, businesses, industries, and other area customers for more than 115 years.