Under both a 1.5°C and 2℃ of warming, relative to the pre-industrial era, deltas are expected to be highly threatened by SLR and localised subsidence . The slower rate of SLR associated with 1.5℃ of warming poses smaller risks of flooding and salinisation , and facilitates greater opportunities for adaptation, including managing and restoring natural coastal ecosystems and infrastructure reinforcement .  'may be effective in reducing the adverse impacts of rising sea levels and intensifying storms by protecting coastal and deltaic regions .' 'Natural sedimentation rates are expected to be able to offset the effect of rising sea levels, given the slower rates of SLR associated with 1.5℃ of warming . Other feedbacks, such as landward migration of wetlands and the adaptation of infrastructure, remain important .'
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report