The Low Carbon Diet is Bon Appétit Management Company's program to reduce greenhouse gas emissions associated with food service by educating their chefs and managers, making significant operational and procurement changes, and educating their customers about the connection between food and climate change. The program, announced in April 2007, aims to reduce beef and cheese purchases by 25%, eliminate air-freighted seafood, and radically reduce food waste, disposables, and energy usage at the company's 400 cafes in 28 states. A key element of the consumer education program is the development of the Low Carbon Diet calculator (online at www.eatlowcarbon.org), which is based on life cycle assessments of key foods, transportation modeling and commercial kitchen energy utilization to arrive at the global warming potential of popular food items.