This article describes and presents initial empirical tests of a theor
y that links values, beliefs, attitudes, and behavior within a prefere
nce construction framework that emphasizes the activation of personal
environmental norms. Environmental concern is related to egoistic, soc
ial-altruistic, and biospheric value orientations and also to beliefs
about the consequences of environmental changes for valued objects. Tw
o studies generally support the hypothesized relationships and demonst
rate links to the broader theory of values. However, the biospheric va
lue orientation postulated in the theoretical literature on environmen
talism does not differentiate from social-altruism in a general popula
tion sample. Results are discussed in terms of value change, the role
of social structural factors (including gender) in environmentalism, t
heories of risk perception, and the mobilization strategies of social
movements, including environmental justice movements.