Powers of explanations for environment-conscious behavioral intentions of the model regarding environment-conscious behaviors and those determinants suggested by Hirose (1994), and powers of influences of the factors assumed in the model were clarified in this study. The purpose was to examine the differences of the powers of explanations and the powers of influences between the types of environment-conscious behaviors, and between Japanese people and Chinese people. Results showed that the model regarding environmentconscious behaviors and those determinants (a) had a fixed power of explanation regardless of the type of environment-conscious behavior, and (b) had a higher power of explanation in Japanese people, compared to the Chinese people.