IPCC Fourth Assessment Report: Climate Change 2007
Climate Change 2007: Working Group II: Impacts, Adaptation and Vulnerability

11.1.2 New findings of this Fourth Assessment Report (AR4)

The scientific literature published since 2001 supports the TAR findings. Key differences from the TAR include (i) more extensive documentation of observed changes in natural systems consistent with global warming, (ii) significant advances in understanding potential future impacts on water, natural ecosystems, agriculture, coasts, Indigenous people and health, (iii) more attention to the role of adaptation, and (iv) identification of the most vulnerable sectors and hotspots. Vulnerability is given more attention – it is dependent on the exposure to climate change, the sensitivity of sectors to this exposure, and their capacity to adapt.