The four maps show four global landscapes and their interdependencies. These landscapes are drylands and water-stressed areas, transboundary river basins, coastal zones and deltas and cities. These landscapes encompass clusters of risks and challenges.   
The four maps show four global landscapes and their interdependencies. These landscapes are drylands and water-stressed areas, transboundary river basins, coastal zones and deltas and cities. These landscapes encompass clusters of risks and challenges.