About the Authors

Lena Klaaßen

Roles Conceptualization, Investigation, Methodology, Software, Visualization, Writing – original draft

lena.klaassen@gess.ethz.ch (LK); bjarne.steffen@gess.ethz.ch (BS)

Affiliation Climate Finance and Policy Group, ETH Zurich, Zurich, Switzerland

Christian Lohmüller

Roles Investigation, Methodology, Software, Writing – review & editing

Affiliations Climate Finance and Policy Group, ETH Zurich, Zurich, Switzerland, TUM School of Life Sciences, Technical University of Munich, Munich, Germany

Bjarne Steffen

Roles Conceptualization, Funding acquisition, Methodology, Supervision, Writing – review & editing

lena.klaassen@gess.ethz.ch (LK); bjarne.steffen@gess.ethz.ch (BS)

Affiliations Climate Finance and Policy Group, ETH Zurich, Zurich, Switzerland, Massachusetts Institute of Technology, Center for Energy and Environmental Policy Research, Cambridge, Massachusetts, United States of America, ifo Institute, CESifo, Munich, Germany

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests: Lena Klaaßen is a co-founder of CCRI GmbH, a company providing data on sustainability aspects of cryptocurrencies and blockchain systems. To our knowledge, cryptocurrencies and blockchain systems do not play a decisive role in the sample of the present study. Christian Lohmüller is an employee at SYSTEM Ltd. He started this position after his research stay at the Climate Finance and Policy Group at ETH Zurich.