Sodas and other sugary beverages could get more expensive in San Francisco under a tax being proposed by a city supervisor.

At Tuesday's board meeting, Supervisor Scott Wiener plans to propose a 2-cents-per-ounce tax on sugary beverages that have at least 25 calories per 12 ounces.

If the proposal passes the board, it would go on the November 2014 ballot to be decided by the city's voters, requiring two-thirds approval to pass.

(Hat tip to Jon Fleischman)