But with so much fertile, productive land degraded each year ... The UN World Food Programme, for example, has been working to improve water resilience in Mauritania and Niger in western Africa ...

As the layer of fertile topsoil thins, it gets increasingly difficult to grow crops for food. Without altering agricultural practices and urgently finding ways to preserve soil, the global food ...

With 85 per cent, soil erosion is the main contributor. Approximately 1.5 billion people – a quarter of the world's population – depend directly on the food production from degraded lands. More than ...