Holistic Management and Planned Grazing. Grasslands and grazing animals co-evolved over 50 million years. Good management of grasslands and grazing animals the way nature does it – constantly moving in tight herds rather than confined by fences – restores biodiversity, healthy water cycles, cools the biosphere and provides food and fiber to millions of people. Holistic Planned Grazing can turn a desert green again (left). A good introduction is Judith Schwartz’s landmark book, Cows Save the Planet.