File photo of a sprinkler in use near Dodge City Kansas

 
File photo of a sprinkler in use near Dodge City Kansas
A sprinkler is in use near Dodge City, Kansas, in this November 26, 2012, file photo. The government declared much of the central and southern Wheat Belt a natural disaster area on January 9, 2013, due to persistent drought that imperils this year's winter wheat harvest. REUTERS/Kevin Murphy/Files (UNITED STATES - Tags: AGRICULTURE ENVIRONMENT)