Raising land, or individual buildings, can avert flooding and be accomplished artificially or by nature-based interventions through river diversion and control in estuarine and deltaic archetypes . Nature-based land elevation is limited by sediment supply and can address SLR rates of up to 10 mm yr-1 . It also assumes that existing land-use patterns permit land raising . Artificial land raising can achieve significant elevations and be implemented over a large spatial scale . Raising land can be cost beneficial for small areas or where lower safety levels are satisfactory, but protection is usually more economical for larger areas, although both strategies are often combined .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report