A survey to investigate environmental behavior difference between the period of programmedblackout (March of 2011)and one month after the finish of the blackout (May of 2011)hasbeen performed. Three respondent groups and three behavior groups are obtained by clusteranalysis of the questionnaire data of environmental behaviors. The positive people forenvironmental behaviors do almost of all listed behaviors, the moderate people do two thirds ofthe behaviors, and the negative people do one third of the behaviors. It has a tendency that thenegative people think public offices have responsibili...