Researchers have identified genes linked to vegetarianism. This may help explain why some people who are motivated to give up meat for ethical, environmental or health reasons, don't always adhere.

There's more variety than ever with plant-based ice cream, from the freezers of your grocery store to your local scoop shop. How come?

The exiled Tibetan spiritual leader has co-written a book about climate change called Our Only Home. In an NPR interview, he suggests one step toward combating climate change is to stop eating meat.