Table 2: Estimate (lower bound) of the cost of adaptation. Sector/sub-sector. Adaptation action. Cost (million USD). Critical Infrastructure. Climate change adaptation to be mainstreamed in all sectors with critical infrastructure ;. Planning process for all new developments, with associated improvements in the building codes and their rigorous enforcement ;. Building the resilience of communities. 70.00. Tourism/ Coastal Management. Implement Coastal rehabilitation and protection measures in criticalareas due to coastal erosion caused by SLR ;. Build Coastal resilience. Reduce vulnerability to flooding and landslide in critical areas ;. Strengthen the early warning System and capacity building In coastal areas;.