Intact natural forest ecosystems are major stores of carbon and support large numbers of species that cannot survive in degraded habitats . Extensive areas of natural forest ecosystems remain in tropical, boreal and  temperate biome regions, but in many regions they are managed  or have been degraded or cleared. Deforestation and land degradation continue to be a source of global GHG emissions  . Protection of existing natural forests and sustainable management of semi-natural forests that continue to provide goods and services are highly effective NbS  .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report