Three months after a penny-per-ounce tax on sugary beverages was trounced by Richmond voters, a new statewide poll has given hope to supporters of "soda tax" measures.

According to a new Field Poll, only 40 percent of voters support a soda tax when first asked, but support increases dramatically to 68 percent if the proceeds are earmarked for improved school nutrition and physical activity programs.

The poll could help propel efforts in California and other states to put a soda tax on statewide ballots.

The survey found support for a tax is especially strong among Latinos, Asian-Americans and African-Americans. The poll also showed that 75 percent of registered California voters, including 85 percent of Latinos, see a link between drinking sugary sodas and a person's chance of becoming overweight or obese. But fewer voters believe energy drinks or sports drinks carry the same health risks.

Read more at the San Jose Mercury News