Australian Broadcasting Corporation: The CSIRO says 250 million people across the world are in danger of losing homes and employment if the problem of desertification is not addressed. Desertification is the degradation of dry lands through soil erosion, mismanagement and climate change. Dr Mark Stafford Smith, from the CSIRO’s Desert Knowledge Co-operative Research Centre, says the problem needs to be taken seriously by landholders and government. “Although desertification is on the world agenda as an …