Legal and regulatory instruments are not perceived as major barriers to biodiversity management and ecosystem connectivity projects . A challenge that biodiversity-based measures still face is less acceptance among decision makers because their efficiency and cost-benefit ratio are difficult to determine and most of the measures are only effective in the long term . Methodologies to determine cost-effectiveness vary substantially between studies, in part because these analyses must be tailored to the socio-ecological context to be meaningful for local governance. This makes it challenging to capture and synthesise the full economic benefits of biodiversity-based solutions in comparison to alternatives . In all, biodiversity and nature-based solutions have gained considerable political traction, with the greatest emphasis on the role of ecosystems as carbon sinks .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report