As Europe seeks to restore its degraded freshwater ecosystems, a key question comes into focus: is the EU’s main agricultural policy delivering on its environmental promises? In a new paper published in the special issue Wetlands in a Changing Climate: Restoring Coasts and Floodplains, Dr Josselin Rouillard examines whether the Common Agricultural Policy (CAP) 2023–2027 is effectively supporting freshwater restoration.

The chapter “International climate finance: institutions in the climate regime” by Dr. Ralph Bodle appears in the Research Handbook on Climate Finance and Investment Law. The volume is part of the Research Handbooks in Climate Law series and was published by Edward Elgar Publishing in 2025.

As part of the section on new and emerging themes in the book A Research Agenda for Environmental Crime and the Law, Stephan Sina, Senior Fellow at the Ecologic Institute, contributed a chapter titled "Climate Change and Criminal Justice". In this chapter, he explores why criminal law currently plays only a marginal role in discussions on climate change mitigation – and whether this should, and could, be changed.

As an output of the international academic conference "Towards the Polish Climate Protection Act" on 7 September 2022 in Szczecin, Wolters Kluwer Poland has published an edited volume entitled "Współczesne Wyzwania Prawa Ochony Klimatu" (Contemporary challenges of climate law). Dr. Stephan Sina, Senior Fellow at Ecologic Institute, contributed an English language essay on the German Federal Climate Change Act. He describes the development and main features of the Act, as well as its revision based on the decision of the Federal Constitutional Court on 24 March 2021. He also presents lessons learned and good practices, and addresses challenges.

The book and e-book "Climate Change in Germany" was republished in March 2024 by the Climate Service Center Germany (GERICS). The open access book is a comprehensive presentation of climate change and the consequences of climate change in Germany. The interdisciplinary work brings together specialist areas and topics from 165 experts from the climate, natural, environmental, social and human sciences. The work highlights various options for action for adaptation and climate protection activities in individual regions in Germany and across different sectors. Dr. Grit Martinez from Ecologic Institute is co-author of the article "Further development of climate change adaptation strategies".

A democratic dialogue with a broad spectrum of stakeholders and the society is considered necessary for the transformation to a sustainable bio-based economy. As such, several dedicated bioeconomy strategies across Europe and beyond outline objectives towards broader stakeholder and public engagement. In this book chapter Zoritza Kiresiewa, Laurens Duin and Holger Gerdes address the degree of participation and the role of the individual actor groups and society in strategy development processes and recommend concrete actions for more inclusive and effective stakeholder and public engagement.

A research team including Arne Riedel from Ecologic Institute examines the political agency of transnational city alliances – particularly the Arctic Mayors' Forum (AMF) – and their contribution to sustainable urban development in the European Arctic.

Hydropower is at the cross-road of different policies on renewable energy, climate change, water and nature. Knowledge of current policies and regulations at different levels is crucial for understanding the framework conditions for more sustainable hydropower. In this chapter, Ecologic Institute's Dr. Eleftheria Kampa examines the role of policy in planning and implementing mitigation actions for European hydropower. The chapter is available for download.

This chapter provides an overview of public perception of hydropower projects, describes methods for studying public acceptance and presents an application of the Q-methodology in four Europe case studies from hydropower-intensive regions. The chapter, written by Mandy Hinzmann, Holger Gerdes (both Ecologic Institute) and Terese E. Venus is available for download.

Germany's Polar research activities contribute to numerous initiatives and include links to climate and biodiversity protection. To prepare for future challenges and address the most pressing issues, the federal government launched a process to develop a new polar research agenda. On 19 May 2021, the steering group of the process including Ecologic Institute's Arne Riedel, handed over the concept paper on the "Changing Polar Regions" developed by over 100 experts to the Federal Ministry for Education and Research.

Based on a stocktake, we present options to improve international soil governance in the short, medium and long term. The stocktake includes existing international instruments and institutions that are relevant for soil protection and its governance at the international level. It assesses the actual and potential steering effect of, inter alia, the Desertification Convention, the Biodiversity Convention, the Paris Agreement and climate regime, regional treaties, FAO, UNEP, IPBES and IPCC.

How can think tanks help pave the path to a sustainable future in light of the COVID-19 pandemic and a rapidly changing policy landscape? Dr. Camilla Bausch and R. Andreas Kraemer address this question in the chapter "Think Tanks for Future" and make recommendations on how think tanks can adapt their work to reflect the pressing concerns of the future.

National framework laws represent the most concrete form in which climate governance systems are being established. Globally, the number of such framework laws is growing, with the majority arising around the time of the adoption of the Paris Agreement or shortly thereafter – especially those that include a long-term time horizon (e.g., 2050). Even without a detailed empirical analysis, arguably there has been an evident 'Paris momentum' behind the spread of these national climate laws. In chapter 2 "‘Paris Compatible’ Climate Change Acts? National Framework Legislation in an International World" of the book "National Climate Change Acts. The Emergence, Form and Nature of National Framework Climate Legislation", Matthias Duwe and Dr. Ralph Bodle show how national climate policy is at least partly determined by obligations at the supranational level, in particular of the European Union (EU), and at the international level.

Published by the Pontifical Academy of Sciences a new book deals with the reduction of food loss and waste globally. It includes an article that sums up results of the EU research project REFRESH, and in particular the work on policies to reduce consumer food waste, lead by the Ecologic Institute. The book is available for download.

This article by Doris Knoblauch and Hannes Schritt (both Ecologic Institute) is part of the anthology "Einfach weglassen? Ein wissenschaftliches Lesebuch zur Reduktion von Plastikverpackungen im Lebensmittelhandel" (Simply Omit? A Scientific Reader on the Reduction of Plastic Packaging in the Food Trade). It deals with the emergence of plastic packaging in Germany and its known environmental impacts. The authors demonstrate that there is a close correlation between the amount of plastic packaging produced and the gross domestic product (GDP) - which, interestingly, is stronger than the correlation between GDP and packaging overall. In this context, avoidance strategies and improvement options for the circular economy are discussed.