ABSTRACT
This chapter reviews the literature on policy coherence, coordination and integration and discusses the theories and explanatory variables used in Environmental Policy Integration (EPI) literature. It derives three theories for a set of explanatory variables which includes neofunctionalism, liberal intergovernmentalism and new institutionalism. The four main explanatory variables identified are: functional interrelations; political commitment; institutional and policy context, which each explains Climate Policy Integration (CPI) in both the policy process and output; and the process dimension, which explains CPI in the policy output only. Concepts such as policy coherence and policy coordination are linked to CPI. As climate policy has traditionally been part of the environmental policy field, CPI is particularly firmly rooted in the literature on EPI. Broader environmental concerns have been linked to the pursuit of sustainable development, which promotes the integration of economic, social and environmental objectives for holistic sustainable policy-making.
