The feasibility of CO2 emission reduction by residents'actions was evaluated and their inhibiting factors were analyzed by type of families, using questionnaire survey to 1, 050 respondents in Matsudo and Maebashi. The results are as follows ;1) The amount of feasible reduction was estimated at about 2% of total domestic emissions from energy consumption. The effective actions to reduce emissions are “ cutting family car use”, “ choosing a fuel efficient car ”, “insulating of houses”.2) The main inhibiting factors were ; a) sanitary problem and time-consuming are the main inhibiting factors for housekeeping and efficient resource use action, b) social customs for lifestyle, c) the cost for insulation, and d) recreational activities for caruse.3) The analysis by family type revealed that families in rural areas and those other than salary earners have larger practicability of the actions than those with frequent house moving and big families.
