– PLANET EARTH:OUR LOVING HOME The True Cost of Choosing Animal Products: Depletion of Mother Earth. Episode: 1875, Air Date: 2 November 2011. br br Greetings, green-minded viewers, to this week’s episode of Planet Earth: Our Loving Home featuring an interview with Dr. Richard Oppenlander, a vegan, on how animal agriculture is destroying our planet. br br Dr. Oppenlander is an American environmentalist, wellness advocate and dentist who over the last four decades has studied the effects of food choices on the environment and human health. He is also the president and founder of an organic vegan food production and education business as well as the co-founder of an animal rescue and sanctuary.