This study analyses the social and political discourses related to env
ironment and sustainable development in Costa Rica. The central intere
st is on those development institutions and ideologies that promote so
cial interventions in the name of sustainable development, and on thos
e social processes and economic relations on which the discursive form
ation of environment and sustainability is articulated. Four different
kinds of ideologies of environmental sustainability are analysed: Env
ironmentalism for Nature, Environmentalism for Profit, Environmentalis
m for the People, and Alternative Environmentalism. The study highligh
ts the complexity of political discourses that construct the relations
hip between nature and society, and the multiplicity of the means by w
hich the control over natural resources, within the internally differe
ntiated development apparatus, is defined.