SAN FRANCISCO - JULY 5 : Dick Campana, owner of  the Swensen's Ice Cream shop, adds ice cream mix to strawberry ice cream on July 5, 2007 in San Francisco, California. The California Department of Food and Agriculture has increased what dairy farmers receive for a gallon of milk to $1.98, up from $1.06 last year. The price increase comes as a result of a various shifts in supply and demand and rising costs of fuel. Getty Images logo Getty Images 29 months ago

SAN FRANCISCO - JULY 5 : Dick Campana, owner of the Swensen's Ice Cream shop, adds ice cream mix to strawberry ice cream on July 5, 2007 in San Francisco, California. The California Department of Food and Agriculture has increased what dairy farmers receive for a gallon of milk to $1.98, up from $1.06 last year. The price increase comes as a result of a various shifts in supply and demand and rising costs of fuel.