But research is needed to evaluate the extent to which LDCs are affected and are vulnerable to climate change since the impacts of climate change widely vary across geographical regions (IPCC 2007). As the characteristics of each country are heterogeneous, the vulnerability to climate change in each country is also variable. To monitor how IPoA is addressing the issue, we propose to first identify, through an indicator of physical vulnerability to climate change, the level and type of vulnerability to climate change of the LDCs.