TS.D.2 There is increasing evidence on limits to adaptation which result from the interaction of adaptation constraints and the speed of change . In some natural systems, hard limits have been reached  and more will be reached beyond 1.5°C . Surpassing such hard, evolutionary limits causes local species extinctions and displacements if suitable habitats exist . Otherwise, species' existence is at very high risk . In human, managed and natural systems, soft limits are already being experienced . Financial constraints are key determinants of adaptation limits in human and managed systems, particularly in low-income settings , while in natural systems key determinants for limits are inherent traits of the species or ecosystem .  
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report