overlapping climate-induced drivers and non-climate drivers confound implementation and assessment of the success of marine adaptation, revealing the complexity of attempting to maintain marine ecosystems and services through adaptation. SROCC assessed with high confidence that while the benefits of many locally implemented adaptations exceed their disadvantages, others are marginally effective and have large disadvantages, and overall, adaptation has a limited ability to reduce the probable risks from climate change, being at best a temporary solution . SROCC also concluded that a portfolio of many different types of adaptation actions, effective and inclusive governance, and mitigation must be combined for successful adaptation . The portfolio of adaptation measures has now been defined , and individual and combined adaptation solutions have been implemented in several marine sectors . Delays in marine adaptation have been partly attributed to the complexity of ocean governance  and to the low priority accorded the ocean in international development goals , but in recent years the ocean is being increasingly incorporated in international climate policy and multilateral environmental agreements .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report