Some parts of southwest Arizona could experience more than 140 days of temperatures above 100 degrees within 20 years, according to a climate change model from the EPA, resulting in greater vulnerability to drought. But water utilities and state agencies say they are confident that the state has been careful in its water use, and communities and water utilities have developed responses to changing climates for years.
READ MORE ►Heating up
Arizona confident in water-conservation efforts
Arizona DWR
Finding clarity in the muddled history of bottled water 
