Governor Arnold Schwarzenegger signed legislation last Thursday that prohibits the sale of carbonated soft drinks in California’s high schools. The ban, which already exists in the state’s elementary schools, is part of an effort to reduce obesity among children in California.

The new law permits the sale of milk, unsweetened water and drinks that contain at least 50 percent fruit or vegetable juice. It will be phased in starting in 2007 and be fully implemented in 2009.

The ban is expected to cost California school districts hundreds of thousands of dollars in lost income from the sale of soda.