meat consumption

Somali refugees lead their herds of goats home for the night outside Dadaab, Kenya. A new study shows that animals in many parts of the developing world require more food — and generate more greenhouse emissions — than animals in wealthy countries. Rebecca Blackwell/AP hide caption

Chickens in a mechanized hatchery in Monroe County, Ala. Buyenlarge/Getty Images hide caption

You'll know you've gotten somewhere on the long and winding road to veganism when the greenery you see along the way starts to look seductively delicious. iStockphoto.com hide caption

PETA members hold placards on the street in Johannesburg. Themba Hadebe/AP hide caption

Luiz Antonio. YouTube hide caption

Sarah Hallacher swirled in white clay with red to mimic the fat marbling, just like you see in prime cuts of meat. Courtesy of Sarah Hallacher hide caption

Michael Sharry visits with Bill, front, and Lou (now deceased) on Nov. 8, 2012, at Green Mountain College in Poultney, Vermont. Toby Talbot/AP hide caption

Asparagus and tofu iStockphoto.com hide caption

Some Americans are cutting back on red meat, and health concerns seem to be the biggest reason they're doing it, a survey found. Shmeliova Natalia/iStockphoto.com hide caption