Ancestral Health Symposium 2012 is now history. The symposium took place at the Harvard Law School August 9 th -11 th . Not a bad gig for a forage agronomist! The title of my presentation was The Reality of Ruminants and Liebeg’s Barrel: Examining the New ‘Conventional Wisdom' . All of the presentations were video taped, and will be freely available. My title slide. Cattle mob grazing a pasture under center pivot irrigation. Photograph by Dawn Gerrish. One of the themes of this year’s symposium was sustainability. I don’t see that term in the simplistic way many do, in part because I remember being told by leaders of the sustainable agriculture movement that “animals have no place in sustainable ag!” The truth is that the production of animal products from perennial forages is the sustainable agricultural system. Many, however, are concerned about the carbon dioxide and methane “emissions” from livestock in general, and cattle in particular. Some folks don’t seem to understand th...