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Over the last decades, nutrients and pesticides have proved to be a major source of the pollution of drinking water resources in Europe. Extensive legislation has been developed by the EU to protect drinking water resources from agricultural pollution, but the achievement of water quality objectives is still an ongoing challenge throughout Europe. The study aims to identify lessons that can be learnt about the coherence and consistency of the application of EU regulations, and their effects at the local level, using qualitative expert data for 13 local to regional gover-nance arrangements in 11 different European countries. The results show that the complexities and inconsistencies of European legislation drawn up to protect drinking water resources from agricultural pollution come forward most explicitly at local level where cross- sectoral measures have to be taken and effects monitored. At this local level, rather than facilitate, they hamper efforts to achieve water quality objectives. The upcoming revision of the Water Framework Directive (WFD) should strengthen the links between the different directives and how they could be applied at local level. In addition, a more facilitated cross-sectoral approach should be adopted to improve stakeholder networks, between institutional levels and hydrological scales, to attain policy objectives at local level.

The Minamata Convention, which entered into force on 16 August 2017, is a global, legally binding instrument on mercury. The initiative on the Minamata Convention was mainly driven by research showing negative effects on human health and the environment in the Arctic. The Arctic Council, an intergovernmental forum promoting cooperation on Arctic issues, and its Working Group, AMAP, played an important role in the process leading up to international negotiations on the Minamata Convention. This paper elucidates the evolutionary process in which scientific knowledge, herded by an intergovernmental, regional forum, is involved and forms the basis for a legally binding agreement. The paper provides new insight on multilevel governance of the mercury issue and unravels the role that AMAP has played in this dynamic process.