Allan has devoted his life to understanding how to reverse the pattern of desertification. In the 1960s, while working in the USA, he had a major breakthrough in his understanding of how to bring a new approach to land management and achieve grassland restoration. Now, Allan shares what is occupying his mind as the world faces the greatest crisis humanity has faced, a rapidly changing climate bringing with it prolonged droughts, epic storms, and much chaos. Will we be able to shift enough people’s thinking and policy toward holistic strategies in time to heal the ecosystems of earth? Listen and Learn.