Monitoring and evaluation (M&E) are essential to track progress and measure the impact of land restoration activities on the ground.

Action Against Desertification has developed an innovative monitoring system using remote sensing imagery to observe all land under restoration in the areas where it operates systematically and continuously.

While M&E has helped Action Against Desertification assess its activities, the collected data are also used for decision-making, corrective action, continuous improvement of the programme and as a guide for similar projects.

At the same time, the data have produced groundbreaking insights into the world's drylands and the Great Green Wall.