Studied law and history in Kiel, München and Paris (ENA). Judge at the Landgericht Kiel (1969 till 2004). Official of the Commission of the European Community, environmental department (1972 till 2004). Since then retired from both functions.
LL.D University Hamburg. Visiting Professor at University College London. Running an environmental law consultancy “Derecho y Medio Ambiente” in Madrid. Working with ClientEarth, an environmental NGO.
Publication of some 20 books and more than 250 articles on EU environmental law.