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.

Federal Environment Agency 2021: Strafrechtliche und andere Sanktionen im Umweltrecht. Forschungsprojekt. Flyer.

Individual responsibility of Member States - not collective goals for the EU - are a prerequisite for a successful EU climate policy. Increasing the reduction targets for member states should be the starting point for the revision of EU climate policy, not a vague discussion on expanding emissions trading, writes Nils Meyer-Ohlendorf in his OpEd for the Tagesspiegel.

The report summarizes the key findings from the project, evaluates the strengths and weaknesses of the advisory system, and makes concrete suggestions for improving specific advisory measures.

Tenant electricity systems generate solar power on apartment buildings and deliver it directly to the households in the building. In a new study, Katharina Umpfenbach and Ricarda Faber (Ecologic Institute) evaluate the effects of the existing tenant electricity systems in Berlin. The bottom line: Berlin's 74 tenant electricity projects have positive ecological and socio-economic effects, but these remain low compared to the technically available potential. Currently, only 1 % of the tenant electricity potential is used. The study is available for download.

The objective of transformative research is to find out, together with actors from the corporate sector, politics and civil society, how our economic and social system can be made more sustainable, and to jointly test possible solutions. Transformative research is thus also transdisciplinary - it involves actors beyond academia as equal partners. This kind of research involves certain methodological challenges and questions; some of these were discussed at the tF Symposium 2021: From Experiment to Mainstream. Martin Hirschnitz-Garbers and Christiane Gerstetter, both Senior Fellows at the Ecologic Institute, contributed to the online symposium, which was held in German language.

Decoupling economic growth and resource use is a core objective of the "European Green Deal". How this is to be achieved is formulated in the new "Action Plan for the Circular Economy" and the "Industrial Strategy" of 2020. Reason enough to take a closer look at the current but also the older strategy papers – which concrete goals do the strategy papers contain – and which ones not? Which areas are addressed and which measures proposed – and what is announced for the near future? Is today's resource conservation policy more ambitious than in its early days? This paper presents the key political documents of European resource policy and traces lines of development.

This study, co-authored by Raffaele Piria, looks at energy policy and energy industry developments and debates on hydrogen in Canada and highlights potential for cooperation with Germany. There is a broad consensus that Germany will need to import significant quantities of sustainably produced hydrogen or derived products in the long term in order to meet its climate targets without overwhelming acceptance for domestic power generation.

How much and what kind of waste is found on European riverbanks? Are microplastics floating in our river towards the open sea? What measures could reduce the presence of single-use plastic items in the environment? These are just some of the questions that young people are exploring together with scientists in the citizen science project "Plastic Pirates - Go Europe!". The aim of the project is a wide-ranging, scientific survey of litter pollution along European watercourses and the identification of potential litter hotspots.