Abstract
This study aims to evaluate the effect of household characteristics change to environmental load related to Japanese food consumption. CO2 emissions are estimated by individual/household attribute using micro data household expenditure data. Household and income Scenarios are developed for future estimation. In change from 1989 to 1999, increase of solitary household and aging was the most important factor rather than changes of CO2 emission factor. CO2 emission in 2030 will increase by 3-14% compared to 2000. In the middle scenario, the positive effect to CO2 emission by household characteristics change and income increase are 11-12% of the emission in 2000. Each of effect offsets the effect of population decrease.
