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 be converted to renewable energies in the next few years and that the building envelopes be 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.

Europe is 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?

Infrastructure development in Germany must be increasingly geared towards increased climate targets and the need for decarbonisation. 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 managing infrastructure development in a more targeted manner in the years to come. What are the possibilities, limits and sensible approaches to accelerating planning?

On 6 November 2021 at 17:45 CET, this online COP26 side event explored the role of long-term climate strategies in sustainability governance, raising short-term ambition on climate action, ecosystem stewardship and adaptation. The event was live streamed on YouTube.

Nature-based solutions (NbS) are crucial for cities to jointly address the climate and biodiversity crises, while creating quality green jobs and wellbeing for local communities. This COP26 EU Side Event featured different sector practitioners (policy makers, entrepreneurs, international organizations) delivering inspiring presentations and engaging in a panel discussion highlighting a variety of perspectives on key challenges, opportunities, and pathways to mainstream urban NbS and boost local economies.

In this COP26 side event, we discussed priorities for the further development of long-term strategies, lessons from strategy formulation and implementation processes in the EU and ASEAN, and prospects for international cooperation. We draw on recent analyses by the German Advisory Council on Global Change (WBGU), the German Development Institute (DIE / GDI), the EU, including the EU-funded Enhanced Regional EU-ASEAN Dialogue Instrument (E-READI) study on the development of LTS in ASEAN and the Climate Recon 2050 platform (CR2050) experiences.

Germany wants to become climate-neutral by 2045 and 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 realised?

In Berlin, a variety of initiatives show how the economy can be different: with more solidarity, more democracy, more ecological and better for all. We discuss why this is not easy, but can be promising. In the sixth edition of Wandelwecker, our morning impulse for a social and ecological metropolis, we discussed these questions with two experts.

The expert dialogue aimed at informing and discussing the implementation of Re-Use and recycling measures for insulation materials. The Berlin Senate Department for the Environment, Transport and Climate Protection, the "Verband für Dämmsysteme, Putz und Mörtel" (Association for Insulation Systems, Plaster and Mortar) and the "Gesamtverband Deutscher Holzhandel" (German Timber Trade Association) invited participants to attend – alongside around 250 expected participants – the Webinar, that took place on 6 October 2021. Ecologic Institute supported organising and implementing the event logistically and technically.

The digital, or perhaps in this case "intelligent" technologies that are to shape all areas of society in the future, especially our cities, need regulation. After all, these kinds of technologies inform, decide and control — but in whose interest and with which objectives in mind? Recently, there has been increasing thought and debate about the possibilities of democratic data governance "from below". Citizens should (also) be able to decide what intelligent, data-driven machines are used for by consciously sharing their data. Can such approaches be a model for the sustainable digitalization of cities and municipalities and provide a counterweight to the data monopolies of large corporations? What could democratic data governance in Berlin look like?

Interactions between climate and resource policy – the so-called "climate-resource-nexus" – still need to be much better understood and potential impacts of effective policies systemically analysed. Against this background, the final conference served to present and discuss key findings from the ICARE project, in particular results from system dynamics model simulations of potential environmental and economic impacts of different climate protection and resource policy measures in different world regions.

On September 2021 at the online Future Forum, the research network Ecornet Berlin discuss the future of cities and their relationship to the surrounding areas with an expert panel

The Berlin Energy and Climate Protection Program 2030 gives solar energy a central role, as it is the most important renewable energy source that can be developed locally. The state government wants to cover 25 percent of Berlin's electricity supply from solar energy as quickly as possible. In the densely populated city, this also requires the roofs of apartment buildings to be used. In the discussion format Wandelwecker on 8 September 2021, Fabian Zuber from the Reiner Lemoine Foundation and Ecologic Institute's Katharina Umpfenbach discussed options transforming the regulation of tenant electricity and local solar power supply. The event was moderated by Valentin Tappeser from IÖW. It became clear that solar expansion can only be achieved at the required speed with a fundamentally new regulatory approach centered around joint self-supply that intelligently links on-site power generation via solar systems with charging of electric vehicles and heat generation.

In EU policy, the textile value chain is currently in the focus of efforts to build a circular economy. Textile recycling in the EU is still in its infancy, although promising innovative technologies are about to enter the market. How can policy support the industrial uptake of textile recycling? This was topic of a webinar held on 31 August 2021. Members of Ecologic Institute's Circular Economy Team presented policy recommendations to the European Commission to enhance systems for the collection, sorting and recycling of textile waste - and to create a market for recycled textiles.