Transnational delegation in global environmental governance: When do non‐state actors govern?

Non‐state actors – including firms, non‐governmental organizations, and networks – are now a permanent fixture in environmental politics. However, we know surprisingly little about when states choose to delegate to non‐state actors through multilateral treaties. This paper provides an historical picture, tracing patterns of delegation to non‐state agents in a random sample of multilateral environmental agreements from 1902 to 2002. I introduce a new unit of analysis – the policy function – to understand what non‐state actors actually do as agents. I find that analyses of delegation are sensitive to the unit of analysis; patterns of delegation at the treaty level are very different from those at the level of individual policy functions. While overall the decision to delegate to non‐state actors – what I term transnational delegation – is rare, it has grown over time. Complex treaties, those with secretariats, and those focused on the management of nature are more apt to delegate to non‐state actors. Non‐state agents fill a small, but growing role in multilateral environmental treaties.