Not American, but 3 easy ways to reduce emissions - Go vegan - or cut out meat and dairy as much as possible - Buy local, seasonal and organic food whenever possible, and only buy what you will actually eat - Don't buy anything your grandmother wouldn't recognise as food

Agree w eat fewer animals / more plants. Also minimize food waste. Local, organic, & low-processing are good for different reasons, but not major mitigation solutions. Transport & processing not big contributors to food-related GHGs. And organic often has yield penalty which can lead to C leakage.