Lots of states are passing laws to try to improve the food environment for kids–schools, marketing, vending, physical activity, farmers’ markets, and lots of other ideas. I can’t keep track of them. Fortunately, other people can and are writing about what they find. Here’s one such paper, sent to me by Joel Moskowitz of UC Berkeley’s Center for Family and Community Health. It’s a good place to start if you are wondering whether the environment has anything to do with childhood obesity and, if so, what the legal system can do about it.