Learn about efforts to restore agricultural productivity to areas of China and Ethiopia, in this video segment adapted from the documentary Hope in a Changing Climate. Filmmaker John Liu tells the story of China's Loess Plateau, where thousands of years of farming and grazing led to unparalleled erosion and a loss of soil fertility. He explains how scientists and engineers implemented a plan to reverse the destructive process. Liu then shows us steps taken to restore vegetation to the eroded Ethiopian landscape, which had been devastated by drought. Restoration efforts help to fight global climate change, biodiversity loss, flooding, drought, hunger, and poverty.