The absence of evidence about the current effectiveness of proposed adaptation actions to guide future actions and investments presents a serious risk to North America, especially at higher GWLs . Evaluating the limits to adaptation and the effectiveness of adaptation actions is hindered by a lack of monitoring and evaluation . Incremental, passive adaptations are often characterised by soft limits due to differing access to resources and by perceptions and tolerance of risk . At current warming levels, social-ecological systems have been reaching limits to adaptation in regions with high exposure and high sensitivity . However, the implications for adaptation are unclear as soft adaptation limits are mutable and change with evolving knowledge,
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report