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.

In a decision published in May 2021, the German Constitutional Court held that the Federal Climate Change Act is partly unconstitutional and has to be amended by the end of 2022. This policy brief explains the court's key arguments and findings.

The Conference on the Future of Europe begins on 9 May 2021. This political process can become a milestone in EU climate policy making – provided that its recommendations are specific and focus on the EU's ability to act, writes Nils Meyer-Ohlendorf in the Tagesspiegel. He makes three proposals how the conference can support EU climate policies.

The 6th expert dialogue on sustainable timber construction took place on 6 May 2021. Speakers included architects and engineers as well as experts from relevant research projects who presented and discussed practical topics related to timber construction in the capital region.

The "Plastic Pirates" are a citizen science project for young people to research litter pollution in German rivers. The article describes the background and objectives of the project, explains the scientific methodology and presents some of the results from the first years of the project.

On 30 April 2021 at the online Berliner ENERGIETAGE, the research network Ecornet Berlin presented how tenants can benefit from the energy transition.

In this paper, Susanne Langsdorf and Laurens Duin explore the Dutch targets and the vision for a circular economy. They shed light on the development, structure and implementation of the Dutch Circular Economy Program and related policy processes, including the established monitoring program. The authors also identify several shortcomings of the program. Finally, they assess what parts of the program could be transferred to Germany.

The 2021 annual conference of German Association of Dietitians has put a focus on sustainability and its relevance for the work for dietitians as well as policy makers. Stephanie Wunder gave a impulse presentation on this topic entitled "Effectively using synergies between health-promoting and environmentally friendly nutrition".

Plastic pollution in the environment is a global problem with unforeseeable ecological consequences. Despite numerous activities and approaches, there are only a few reliable findings on the input and distribution pathways and the effects on humans and animals. In order to close these knowledge gaps, the German Federal Ministry of Education and Research established the major research focus "Plastics in the Environment - Sources - Sinks - Solutions" in summer 2017 and funded 20 innovative collaborative projects. The aim of the research was to obtain an overall picture of the environmental impact of plastics along their entire life cycle, from production and use to disposal. The aim is also to identify opportunities for improvement as well as options for action, thus creating the scientific basis for holistic strategies and measures. This conference proceedings present the research of the joint projects and work results in the cross-sectional topics.

Presentation and discussion of research results from 20 projects on the issue of plastic pollution.

Ecologic Institute designed a programme flyer as part of the visual identity for the project "Plastic in the Environment – Sources • Sinks • Solutions." The programme flyer was developed and designed to provide relevant content on the conference agenda in a concerted way to participants.

In the context of the European Green Deal, the introduction and design of border adjustment measures is currently subject to much controversy. Upon invitation to contribute to the series "Green Deal reloaded" by the Stiftung Genshagen and the Institut Montaigne, Dr. Camilla Bausch (Ecologic Institute) analyzes the opportunities and challenges provided by the proposed border adjustment mechanism.

Drinking water protection in North Rhine-Westphalia is based on mandatory requirements as well as voluntary measures agreed on between farmers and water suppliers. A study conducted by Ecologic Institute and HYDOR Consult for the Ministry of the Environment, Agriculture, Nature Conservation and Consumer Protection in North Rhine-Westphalia (NRW) evaluated the outcomes of drinking water protection within the framework of the cooperative water protection model in NRW. The results were summarised in two articles in the journal “Korrespondenz Wasserwirtschaft”.

This background paper for the research project "Digitalisation – Setting the Course for a Social-Ecological Digital Transformation in Berlin" within the project "Knowledge. Change. Berlin" provides an overview of the sustainability and digitalisation goals of the state of Berlin. First, the paper outlines sustainability goals relevant for the project in the following topic areas: data governance, climate protection, transport and mobility, energy and health.

The current issue of the journal KW Korrespondenz Wasserwirtschaft (03/2021) focuses on plastics in the environment. The thematic issue contains articles from the collaborative projects PLASTRAT, RUSEKU, SubμTrack, MikroPlaTaS and PlastikBudget.