Data deficiencies and heterogeneity in quantity, quality and geographical bias in knowledge limit people's understanding of climate change, evaluation of its impacts and the implementation of adaptation and mitigation measures  in CSA. The number of publications is not representative of the sensitivity to climate change and vulnerability contexts of different sub-regions and sectors. This lack of representation in the mainstream literature may lead to a bias and, therefore, an underestimation of the overall climate-related impact for some CSA sub-regions . The reason for the relatively few quantitative studies might be the complexities of socio-demographic and economic factors and the lack of long-term and reliable data in these areas , along with other social, economic and technical constraints.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report