Effects of climate change in arid regions include increased variability in water supplies and changes in water demand due to increased temperatures. These effects pose great challenges for water managers and water users in regions already facing water scarcity. Voluntary arrangements between agricultural water users and those seeking more reliable supplies for urban and environmental needs are an important regional adaptation tool. This guidebook series is intended to assist public agencies, non-profit organizations, irrigation districts, cities, and businesses with design and implementation of water acquisition programs to improve water supply reliability during drought and under climate change.
