On the 25 November 2021, more than 70 actors dealing with food waste reduction in Germany met for an exchange on how to plan and implement measures that create an impact. The event was part of the so-called "Dialogue Forum Private Households" that is part of the German Strategy for Food Waste Reduction.

In the coming years, the course must be set for the necessary transformation toward a society and economy that is in keeping with the needs for future generations. Science, and sustainability research in particular, has a responsibility to support this change with its resources. But what must science resemble in order to find practicable answers to the most urgent questions of the future? And what demands does this place on the research policy agenda? This event is part of the "Knowledge for Change" series of events celebrating Ecornet's 10th anniversary. Ten years ago, leading independent institutes of environmental and sustainability research in Germany joined forces to form the Ecological Research Network (Ecornet) in order to bring their combined knowledge to bear on the scientific landscape and society. With their practice-oriented, transdisciplinary research, the Ecornet institutes have been accompanying - and actively shaping - socio-ecological change for decades.

This paper discusses which indicator is suitable to concretize the change of dietary styles towards less animal and more plant-based products – here called "protein transition" – for political and scientific discourse. The results presented are part of the work of the research project "Socio-ecological Transformation of the Food System" (acronym STErn) carried out on behalf of UBA/BMU.

The economies and populations that are the main contributors to the climate crisis are least affected by the consequences. With the European Green Deal, the EU claims for itself a pioneering role in climate protection, but does it have solutions ready that do justice to the structural inequality and unfair distribution of social, economic and political opportunities between the communities that populate the earth? In the online event on 24 November 2021 the discussion drew on Concepts for Climate Justice, featuring Maria Fernanda Espinosa, Ecuadorian diplomat, politician, academic and former president of the 73rd UN-General Assembly. We are looking forward to your registration. The full recording of the event is available online.

The aim of this manual is to increase the effectiveness of measures to reduce food waste. It focuses on the reduction of waste in private households, although the approach is in principle also suitable for planning measures in other sectors. The manual is available for download.

Climate change with the resulting global warming is the largest and most all-encompassing global crisis of our time. As an ecological crisis, it stands for the misuse of fossil fuels and the exploitation of natural life-support systems, which includes the destruction of biodiversity and also irreversible damaging impact on the geological sphere. Furthermore, climate change is a geopolitical problem. It is already stoking sociopolitical instability, creating migratory pressure, exacerbating global inequality, endangering human rights and putting peace in the world at risk.

The more stringent climate targets of the state of Berlin require that both the heat supply is converted to renewable energies in the next few years and that the building envelopes are ambitiously renovated to make them more energy efficient. This poses great challenges for the state and districts as well as the real estate industry. At the same time, due to the tense situation on the Berlin housing market, there is a need for regulations to protect tenants, which is why the number of milieu protection areas in Berlin's districts has risen sharply. In these areas, which already contain a relevant proportion of old buildings which are in need of refurbishment, there are additional obstacles to climate protection measures that are in line with the objectives.

Europa its on its way towards a circular economy and has set itself an extremely ambitious plan to this end in the form of the Circular Economy Action Plan; among other things, non-recyclable residual waste is to be halved by 2030. But how is it being put into practice? And what does it take to gain more speed here – for example in the textile sector, which is virtually exemplary for the linear thinking of a throwaway culture.

Citizens' councils are booming. Now, EU citizen panels have started. A first step has been taken, but it is still a long way to go for the EU Panels to be successful, write Nils Meyer-Ohlendorf from the Ecologic Institute and Felix Nasser from the German Bürgerrat Klima in the Tagesspiegel Background. They make three proposals how to turn the EU Citizens Panels into a success.

Infrastructure development in Germany must be increasingly geared towards increased climate targets and the need for decarbonization. At the same time, public participation is still needed to involve the population in the upcoming change processes and to ensure democratic achievements. Thus, leveraging efficiency potentials in planning processes is considered key to manage infrastructure development in a more targeted manner in the years to come. What are the possibilities, limits and sensible approaches to accelerating planning?

This infographic was created for the study "Nature-based Solutions and Global Climate Protection". It has been developed by Öko-Institut and Ecologic Institute on behalf of the German Environment Agency. It is based on Reise et al. (2022): Nature-based Solutions and global climate protection. Climate Change 01/2022. Dessau-Roßlau. You can download a print version of the infographic.

The globalisation of agriculture means that cities are no longer primarily supplied by their surrounding areas. Yet, regional structures can help to make food more sustainable and environmentally friendly. In this podcast, detektor.fm presenter Charlotte Thielmann asks Stephanie Wunder from Ecologic Institute whether regional food is the answer to the problems of the food industry.

In the Ecornet Berlin research partnership, five Berlin institutes of transdisciplinary sustainability research were jointly providing impetus for Berlin's transformation. Their annual conference, "Knowledge. Change. Berlin. 2021" brought current research findings into dialogue with experiences from other cities and the voices of Berlin's practitioners and civil society – for a social and ecological capital.

This article describes the project "Drought and Water Use Conflicts in Germany (WADKlim)" its approach and the context in Germany. The project provides a nationwide overview of current water availability and its future development under climate change conditions. It analyzes emerging conflicts of use and develops possible solution strategies. For example, a concept for regional water advisory councils to strengthen intersectoral coordination will be designed. In addition, the potential of water reuse for irrigation in urban areas will be investigated. The project is funded by the Federal Environment Agency (UBA).

Germany wants to become climate-neutral by 2045, the EU by 2050. Both targets became legally binding in 2021, an important breakthrough on the way to structural transformation to a climate-friendly economy. What further breakthroughs are needed to anchor this transformation in society and enable its implementation? How can the responsibility of individuals as well as economic actors for climate protection be realized?