This paper looks at the varying degrees to which political parties pay attention to environmental issues. Are certain party families more predisposed in talking about the environment? More importantly, has the entry of Green parties in political arenas induced traditional parties to pay more attention to environmental issues? Attempts to answer these questions usually focus on the degree to which parties emphasise environmental issues in their election manifestos. The paper will discuss the various measurement approaches within this tradition, and investigate whether different approaches to measurement lead to substantively different inferences regarding the aforementioned questions.
