Just 12% of Americans are eating half of all the beef consumed in the US in a day, a study found. There's a good chance beef is on the menu, especially for men or people ages 50 to 65. Beef produces an estimated 8 to 10 times more emissions than chicken, and 50 times more than beans. "Beef is an environmentally extravagant protein," Rose said. There's a way to cut back on beef in all of those dishes if you're concerned about your health or the environment."

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Persons: Diego Rose, Rose, Erin McDowell Organizations: Service, Labor, Center for Biological, Tulane University School of Public Health, Tropical Medicine, Agriculture Locations: Argentina