Dr. Stephan Sina, Senior Fellow of Ecologic Institute, gave a lecture on Germany's Federal Climate Change Act (KSG) as part of the TOP Executive Development (TED) Program of the Otto Group in Berlin. He presented the main features of the KSG, the impact of the decision of the Federal Constitutional Court of March 2021, and challenges in achieving the targets of the KSG. . After the presentation, there was a discussion with Dr. Stephan Sina and the audience.

On 14 June 2023, Aaron Scheid presented policy models for linking a reward system for carbon removals in the land sector with the AgETS. Five models were presented as part of the study "Pricing Agricultural Emissions and Rewarding Climate Action in the Agri-food Value Chain", which was developed for DG CLIMA at the time and formed the basis for the panel discussion.

On 8 June 2023, the "Stakeholder Consultation on the CoR Opinion on Towards a Multilevel Green Deal Governance: The Revision of the Governance of the Energy Union and Climate Action Regulation" was held. The event was organized by the Committee of the Regions (CoR) to gather the opinion of various stakeholders on the multilevel governance of the Green Deal and the revision of the Energy Union and Climate Action Regulation. Matthias Duwe contributed his insights and suggestions regarding the Green Deal and the governance of the Energy Union and Climate Action.

The global crisis of the oceans, which has been a tangible and palpable problem in other parts of the world for many years, is increasingly becoming an issue in this country as well. The natural and technical sciences, in particular, have contributed to raising societal awareness about the state of the world's oceans in large-scale research initiatives. Against the backdrop of the ongoing UN Decade of Oceans (2021-2030), an interdisciplinary marine "scoping workshop" took place in Hannover from 7 until 9 June 2023. Dr. Grit Martinez represented Ecologic Institute in this exchange and presented her experiences from interdisciplinary marine collaboration in the EU research project RISC-KIT.

Dr. Stephan Sina, Senior Fellow at Ecologic Institute, gave a presentation on environmental criminal law at the Transfer Talk on Environmental Crime at the Criminological Research Center (KKF). He gave an overview of statistical developments, structural peculiarities of environmental criminal law, challenges in prosecution and the ongoing amendment of the EU's Environmental Crime Directive.

At the Expert Hearing in the European Parliament on "Sustainable management of water and resources in agriculture" on 25 April 2023, Dr. Ulf Stein, Senior Fellow of Ecologic Institute and Coordinator of the Water Studies, was invited as one of four experts. The aim of the event was to speak on the relationship between agriculture and water management in the context of the increasing scarcity of water resources due to climate change. The talk aimed to explore best practices and policy options that can help manage agriculture's impact on water resources, as well as address challenges to agriculture due to weather events such as droughts and floods.

At the online conference, "Moore II: Restoring Intact Ecosystems and Sustainable Use – Pathways to Success," held on 25 April 2023, Gregory Fuchs presented a policy paper stressing the need for freshwater ecosystem restoration. The event, organized to support the UN Decade for Ecosystem Restoration, specifically focused on peatland restoration.

On Thursday, 20 April 2023, INTERLACE hosted a Cities Talk Nature Talks webinar, aiming to strengthen cooperation, learning, and peer-to-peer interactions on the local, regional, and global scales. Natalia Burgos presented on governance instruments to mainstream nature-based solutions and shared best practices gathered in the Urban Governance Atlas.

A key objective of the Interlace project is strengthening cooperation, learning, and peer-to-peer interactions between regions and projects. As part of this process, Natalia Burgos from the Interlace team was invited to take part in a knowledge exchange Task Force organized by Clearing House Project. The Task Force took place in Bogotá (Colombia) on 30 and 31 March 2023 and focused on discussing strategies for urban forest management and implementation, with an emphasis on governance and community participation.

Carbon farming promises to mitigate climate change whilst generating income for farmers – but can this promise be realised, and what are the risks? The European Parliament’s Environment and Agricultural Committees held a joint hearing to understand how EU policy can support on-farm carbon sequestration. The hearing featured two panels, including a presentation from Ecologic Institute Fellow Hugh McDonald on the challenges of carbon farming certification.

Alongside Anne Siemons (Oeko-Institut), Hugh McDonald critically presented a soil-focussed assessment of the EU Commission's recently proposed Framework for Carbon Removals Certification.

McKenna Davis, Senior Fellow at Ecologic Institute, was one of 8 experts speaking on the topic of 'strategies for urban biodiversity' during the Digital Blue Green Event hosted by the Scandinavian Green Roof Institute on 14 March 2023. She began by outlining key challenges facing urban water management, including an increasing frequency and intensity of heavy rainfall events, urban surface sealing and combined sewer overflow events. McKenna then introduced the NICHES project and its aim to rethink the status quo by deploying nature-based solutions and approaching the urban water system as a holistic Social-Ecological-Technical-System (SETS).

Drawing on results from several interdisciplinary research projects funded under the German research focus "Plastics in the Environment", Linda Mederake (Ecologic Institute) shared insights regarding the patterns of societal perception and behavior in dealing with (micro)plastics as well as the scope for action of different actors to reduce (micro)plastic emissions into the environment.

In 2023, the EU adopted regulations defining under which conditions green hydrogen is considered as fully renewable and the methodology to determine the GHG intensity of hydrogen and other PtX products. To discuss these requirements with stakeholders from third countries considering to export renewable hydrogen or derivates to the EU, the International PtX Hub organized a workshop series in 2023. Raffaele Piria coordinated the conception of these workshops and gave a presentation on the climate and energy policy context for the EU's hydrogen strategies and policies.

On 23 November 2022, Dr. Stephan Sina, Senior Fellow at Ecologic Institute, participated as an expert in a hearing of the Hessian State Parliament's Committee for Environment, Climate Protection, Agriculture and Consumer Protection on the Government draft of a Hessian Act on the Promotion of Climate Protection and Adaptation to the Consequences of Climate Change. Together with about 40 associations and experts, he commented on the draft law and answered questions from members of parliament.