The positive feedback between climate change and land use change, particularly deforestation, is projected to increase the threat to the Amazon forest, resulting in the increase of fire occurrence, forest degradation  and long-term loss of forest structure . The combined effect of both impacts will lead to a long-term decrease in carbon stocks in forest biomass, compromising Amazonia's role as a carbon sink, largely conditioned on the forest's responses to elevated atmospheric CO2 . The southern portion of the Amazon has become a net carbon source to the atmosphere in the past decade . 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report