According to this video, Bangladesh's location makes it one of the most vulnerable countries in the world to environmental disasters. Its giant network of rivers and vast low-lying flood plains make it both fertile and subject to erosion from flood, drought and storms. Protective coastal greenbelts, in the form of natural vegetation, can make the difference between life and death during severe weather. Mangrove forests are critical to this necessary defence. This video shows how the United Nations Development Programme (UNDP) worked with the Government of Bangladesh and local communities to plant mangroves along the southern delta's coastline by training local people to run mangrove nurseries and manage forests and then paying them to continue these tasks.