Research project


ARIADNE aims at providing practically relevant scientific advice on governance and policy for a successful transition to a carbon neutral society in Germany and Europe. To achieve this aim, it embeds rigorous academic research into continuous stakeholder dialogues to facilitate mutual learning and co-production of relevant knowledge. Christian Flachsland und Lion Hirth lead the Hertie School’s contribution to ARIADNE with analyses of options for designing climate policy institutions, policy instrument-mixes, policies to embed the energy transition into the international energy and climate policy context, and on electricity market design.


Potsdam Institute for Climate Impact Research (Lead)

Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung

Mercator Research Institute on Global Commons and Climate Change

University of Stuttgart

Institute of Energy Economics and Rational Energy Use

Technical University of Darmstadt

RWI – Leibniz-Institute for Economic Research

German Aerospace Center

Institute For Advanced Sustainability Studies

German Institute for Economic Research

Brandenburg University of Technology

University of Potsdam

German Economic Institute



Institute for Applied Ecology

University of Hamburg

ZEW - Leibniz Centre for European Economic Research

Ecologic Institute

Helmholtz-Zentrum Geesthacht

adelphi research

Nürtingen-Geislingen University

Technical University of Munich

University of Münster

Foundation for Environmental Energy Law

Institute for Climate Protection, Energy and Mobility






1 June 2020 – 31 May 2023


Project lead

Faculty and researchers