抄録
Three recent studies have estimated the size of economic damage cost of global warming in the monetary term, which have the following common characteristics to be focussed upon. 1) All the studies are comprehensive in terms of damage categories. 2) All the studies have the broad agreement on the size of damage cost in US is 1-2% of GNP, although they considerably differ for the individual damage categories. 3) They have also the agreement on the methodology to measure the damage cost of each categories. This paper discusses the proper definition of damage cost and its measurement theory within the context of uncertain world by referring to the main results obtained by the three studies.
