This chapter studies the underlying tensions between 'extractivism' , decentralisation processes, the recognition of ethnic rights, and the protection of the environment in four countries in Latin America. Two of them, Bolivia and Ecuador, adhere to so-called twenty-first century socialism, while the other two, Colombia and Peru, apply policies driven by neo-liberalism. This 'major ideological fissure' , however, does not imply significant differences in terms of dependence on the extractives industry and its social, institutional and political consequences; nor does it explain differences in terms of the relationships between extractivism, decentralisation, and the governments' policies concerning the environment and ethnic rights.