Australian agronomists Tony and Liz Rinaudo arrived at the edge of the Sahara in 1981 to plant trees. Few trees survived in the hostile terrain, and those that did were cut down. While contemplating the futility of their endeavours, Tony discovered an embarrassingly simple method of restoring degraded landscape without planting a single tree. Farmer Managed Natural Regeneration (FMNR), the sustainable system of land management that Tony pioneered, has revolutionised reforestation across Africa and beyond. In Niger alone, local farmers embracing FMNR have rehabilitated over six million hectares of ruined land and doubled their crop yields and income. Tony is a Right Livelihood Award Laureate and Principal Climate Action Advisor with World Vision.