More than seven million Californians are obese, and obesity rates have risen over the past decade to encompass one-quarter of the adult population. The cost to Californians -- in terms of health and medical care -- is rising as well. What can the state do to stem the epidemic? In this seminar, part of the Center's 2015 Health Policy Seminar Series, Center Research Scientist Joelle Wolstein and Senior Center Research Scientist Susan Babey discuss findings from their recent 10-year study, Obesity in California.