CARE2022 Hong Kong Conference

23 3 Government Panel on Adaptation and Resilience FIGURE 3.4 Sea level rise projections 2030-2050 and beyond relative to the average of 1995-2014 2020 2030 2040 2050 2060 2070 2080 2090 2100 0.80 0.60 0.40 0.20 0 Year m 0.23m 0.20m Δ = 0.03m Likely range 0.57-1.08m 0.78m 0.56m Likely range 0.37-0.82m Δ = 0.22m Very high GHG emission scenario (SSP5-8.5) Intermediate GHG emission scenario (SSP2-4.5) Reference: The Sixth Assessment Report of the Intergovernmental Panel on Climate Change Existing wave wall to be upgarded risk FIGURE 3.5 Progressive adaptive approach Existing Seawall Risk treatment is required to reduce the anticipated risk Wave wall to reduce risk Adequate structral reserve for future upgrade Anticipated risk Risk of coastal hazard under climate change (with climate change projections up to mid-century Anticipated risk Wave wall upgrading If climate change projection exceeds assumed scenario: If climate change projection follows assumed scenario: Anticipated risk Large scale coastal structure is necessary Short to medium term measures (for up to mid-century) Long term measures (for beyond mid-century)