Close this search box.
ca. 40 Personen stehen auf Bühne als Gruppe

Transforming the event industry and society with C2C – This was the C2C SUMMIT: STAGING THE FUTURE (GER)

With Cradle to Cradle (C2C), we can shape a climate- and resource-positive future – in the event industry and far beyond. To this end, we have joined forces with Loft Concerts GmbH, KKT GmbH – Kikis Kleiner Tourneeservice and Side by Side Eventsupport GmbH as initiators, and Die Ärzte and Die Toten Hosen as facilitators with the

Laboratory Tempelhof

provided the impetus. But the concerts in August 2022 were just the start of the transformation process: at the C2C SUMMIT: STAGING THE FUTURE on November 22, 2022, 35 speaker*s discussed how the C2C and sustainable solutions of Labor Tempelhof can be scaled and carried into society. Around 200 people participated on site at the Urania Berlin and via livestream.

The four planned concerts at Labor Tempelhof were the first time an attempt was made to replace all products and processes with C2C-
Improve innovations. For this, C2C innovations and sustainable alternatives from the areas of mobility & logistics, energy, nutrients, food & agriculture, water, building & construction, textiles, plastics and packaging, and digitalization were planned. This was not possible everywhere due to a lack of technical implementation options or for cost reasons – in this case, the best possible ecological alternatives were implemented. The cases show which C2C innovations and alternative sustainable solutions are already available today, even in the event context. How these solutions can now be taken into society was discussed at the Summit.

To kick off the Summit, Tim looked at the goals of the project. “At the Tempelhof Lab, it was clear from the very beginning that we had to set ourselves positive goals in order to drive the transformation of the event industry and society in the direction of Cradle to Cradle. The fact that we discussed the results today with representatives of the event industry, business, federal, state and local politics shows: We need to tackle this issue together and have set a milestone for this with this project.”

“The Summit was a successful start for the next project components within the framework of Labor Tempelhof, such as the event series and the exhibition in the coming year. The project is intended to become a transformation platform for all those who, together with us and our co-initiators, want to show how we can implement Cradle to Cradle in practice today and make it a reality”.
Nora commented on the C2C Summit.

zwei Personen, eine männlich eine weiblich gelesen, stehen auf Bühne

Circular economy according to C2C as a solution for our crises

Ricarda Lang, Member of the Bundestag and Bundesvorsitzende BÜNDNIS 90/DIE GRÜNEN, highlighted in her keynote speech the positive goals of Labor Tempelhof and stressed the need to involve each individual in such projects and make them part of the change. We would have to understand as a society that we are in several crises at the same time. But: “We already have a solution to the climate, biodiversity and raw materials crisis in hand, we just have to implement it: The circular economy. It is one of the best solutions we have,” she said. The Tempelhof laboratory had vividly demonstrated how such solutions can be implemented in concrete terms.

Deeper insights into the practical implementation of the project were given by Jonna Clasen, project manager of the Tempelhof Laboratory of C2C NGO, and Sarah Lüngen, part of the Tempelhof Laboratory project management of The Changency (i. A. v. SBS Eventsupport). They stressed the need to be clear from the outset what the biggest levers are to make events as climate and resource positive as possible. One challenge in the planning and implementation of the Labor Tempelhof concerts was the coordination of the many different trades. “It takes a lot of communication and coordination,” Lüngen made clear. Clasen added that the ambassadors who educated visitors about Cradle to Cradle and the project were also important for the overall communication concept.

The next panel, moderated by Nina Eichinger, looked beyond the project and into Berlin’s economic policy. Michael Biel, State Secretary at the Berlin Senate Department for Economic Affairs, Energy and Operations, and Simon Margraf, Head of Business & Politics at the Berlin Chamber of Commerce and Industry, discussed the findings of the Tempelhof Laboratory and how they can be incorporated into Berlin’s strategy for the future. Biel reported that the topic of the circular economy is becoming increasingly important in the capital and should be promoted financially: “We are preparing everything so that Berlin becomes “the place to be” for Circular Economy and Cradle to Cradle.” To achieve this goal, the city works closely with the Chamber of Commerce, he said. “We must use every opportunity to move the future of Berlin-Brandenburg forward in the direction of a circular economy and cradle to cradle,” Margraf added.

Making circular transformation measurable

The Tempelhof laboratory was accompanied by a comprehensive impact measurement, supported by the Boston Consulting Group. Water savings, CO₂ reduction and much more: The results will be published transparently in a guidebook for the event industry in early 2023. The panelists basically agreed that measurability of sustainability efforts and circularity was incredibly important to be able to scale. Alexander Meyer zum Felde, Partner and Deputy Managing Director of the Boston Consulting Group, made it clear that this does not just have to be about reduction and renunciation. “We have to understand that climate protection and the circular economy don’t mean not having fun. We have to get the narrative there so that people understand: C2C is fun,” says Meyer zum Felde. Culture and measurability, however, are not necessarily close, said Jacob Sylvester Bilabel, head of the Action Network Sustainability in Culture and Media. But the culture industry is in a permanent process of transformation, he said, recognizing that better measurability of sustainable solutions can contribute to transformation. That’s why the Action Network is currently developing a CO₂ calculator for the cultural sector. Nicole Wuttke, Head of Sustainable Event Management at the event agency mediapool, referred in particular to the event planning process. “The course for sustainability is set there. In planning, we ask ourselves: What goals can we set and what can be measured?” says Wuttke. Together with a certification agency, Mediapool has defined its own sustainability criteria, which are now being implemented at events.

vier Personen sitzen auf Bühne und diskutieren
6 Personen sitzen auf Bühne und diskutieren vor Publikum

Overcoming challenges together

The panelists on the next panel then discussed the challenges of implementing circular solutions in the event context. “We saw a need for action and decided that it can’t go on like this. There is a great willingness among artists, organizers and fans – I see a lot of positive things for the future,” said Bela B, musician with Die Ärzte and member of our advisory board, describing the band’s motivation to make their concerts available for Labor Tempelhof. The knowledge gained from the project must now be passed on, added Tabea Kaplan, tour management Die Ärzte/artist management Bela B “It is not easy to find trained people in the event industry who deal with sustainability. There needs to be more training on sustainability in the event sector,” Kaplan commented.

Manuel Wrobel, Head of Business Development at visitBerlin, also observed a growing interest in truly sustainable solutions. “Interest is growing more and more – including the awareness that sustainable and circular solutions can and may cost money, because there is no alternative in the long run. There is no option to simply carry on as before,” Wrobel said. Changing the status quo is also the goal of Prof. Thomas Sakschewski, Event Management and Technology at the Berlin University of Applied Sciences. With his project team, he provides scientific support for sustainability concepts for major events. But he says sustainability is also ultimately about supply and demand, including in terms of easy-to-use, sustainable solutions for event concepts. “Currently, demand is high and supply is rather weak, in many areas,” Sakschewski noted, but at the same time welcomed the impetus that came from Labor Tempelhof. “Labor Tempelhof has shown: it is possible. Now we have to move away from the individual case to the standard case. Politically, I still see room for improvement,” added Julian Schwarze, Member of the Bundestag. as well as Spokesman for Urban Development, Tourism and Club Culture, Alliance 90/The Greens.

5 Personen sitzen auf Bühne und diskutieren

Phosphorus cycles and nutrient logistics

In the breakout sessions that followed, participants delved into various subtopics of the project: nutrient management, infrastructure, textiles, and mobility.

Part of Labor Tempelhof’s sanitation concept was composting toilets, from which nutrients were recovered, processed into fertilizer and thus recirculated. This approach not only solves problems such as the decreasing availability of the resource phosphorus. “We have a better recycling rate, we’re putting carbon into the soil, we’re turning the soil back into a sponge – we’re doing climate change mitigation and climate change adaptation all in one,” explained Florian Augustin, general manager at Finizio, the manufacturer of the dry toilets used. Tabea Knickel, Managing Director of the German Phosphorus Platform, emphasized the need for phosphorus recycling: “We are protecting our soils and groundwater and can make ourselves less dependent on other countries. This is important to close cycles and use pollutants in lower concentrations.” The solid contents of the composting toilets used at the Tempelhof laboratory are completely processed into humus, which is used as a nutrient-rich fertilizer in a pilot plant operated by Kreiswerke Barnim in Eberswalde. The phosphorus contained in urine is used to produce liquid complex fertilizer as part of the ZirkulierBAR research project.


The sanitation concept was supplemented by mobile toilets from Wölkchen, the contents of which were diverted to the Berlin-Waßmannsdorf wastewater treatment plant, where phosphorus was also recovered from them. Matthias Heise, a partner at Wölkchen GbR, sees a high level of acceptance among the population for these solutions. “Many end consumers* see the added value in the ecological consideration and resort to resource-saving products,” says Heise. Such concepts can be combined with technologies for the treatment of graywater in order to also recycle water as a valuable resource. Christian Kehrberg, process engineer at Greenlife, explained how lightly polluted graywater, for example from hand-washing sinks, only needs to be minimally purified by osmosis plants so that it can then be used for flushing toilets, for example.

5 Personen sitzen im Raum vorne und diskutieren

Stage dive – stages capable of circulation

A concert is nothing without a stage – but what can a stage look like according to C2C? Companies such as Zinq, Novotech, eps GmbH and Megaforce, among others, deal with this. “Stages and lighting thrive on staying in circulation as long as possible-we have stages that are almost 20 years old. But with that now comes questions like: What raw materials do we buy? Where and how do we have stages fabricated, and how can we get them into a recycling process?” is how Celine Kühnel, Managing Director of eps Gmbh, described her company’s situation. This question is also linked to a different understanding of the value of materials and resources. “For us, zinc is a valuable material, not just a material. When we use zinc, we have an interest in recovering the raw material,” says Lars Baumgürtel, CEO of ZINQ Group, who also advocated strengthening the exchange between suppliers of stage or construction solutions and the manufacturers of the materials used in them. “We want to value our future and the input materials of the future,” agreed Susann Krohn, project manager for Cradle to Cradle at Novotech. Nadine Wolff, project manager for stages and event infrastructure at Megaforce, emphasized that scaffolding and stage structures themselves are already relatively circular. “But we have great potential in consumables, so that’s a big lever,” she said. For this reason, Labor Tempelhof had a stage construction prototype in which all components were deconstructible and could be reused or completely recycled.

Merchandise according to Cradle to Cradle

From molleton to merchandise: In the textile sector, too, the initiators of Labor Tempelhof have tried to implement as many C2C solutions as possible. For example, some of the T-shirts from the merchandise of Die Ärzte and Die Toten Hosen and shirts of the C2C ambassadors* were produced according to C2C criteria. Attention was paid not only to recyclability, but also to material health. “With C2C, we consider from the outset how to design the textile and what the usage scenario is: Is the material suitable for skin contact?” explained Jonna Clasen, C2C NGO’s Tempelhof Laboratory Project Manager. Jana Hack, consultant at Adelphi, agrees that material health is not just “nice-to-have”. “Businesses, recycling and sorting service providers are left to struggle with material decisions made more than a decade ago. It’s even more important to make smart material decisions today that we won’t regret ten years from now,” she said. This applies not only to T-shirts, but also to technical textiles such as molleton, where recyclability is often still in short supply. “Stage fabric is used like disposable paper. We’ve managed to turn that around completely. We source the cotton once and use it for as long as possible. At the end of use, the curtains then go back to the manufacturer,” explained Marcus Stadler, environmental officer at event technology and event architecture provider satis&fy AG, who use a circular molleton that was exhibited as an example at Labor Tempelhof.

More information on the individual C2C cases can be found on the
project website

4 Personen sitzen auf Bühne und diskutieren
Raum mit Publikum und Podiumsgästen vorne

Smart mobility concepts

The biggest lever for making large-scale events as climate- and resource-positive as possible is mobility. Half of an event’s CO₂ footprint is caused by visitors traveling to and from the event. Causes. “Visitors are the elephant in the room when you talk about CO₂-reduction speaks. As the organizer, however, you can control this very well through communication with the concert visitors,” reported Katrin Wipper, founder of the sustainability agency The Changency and part of the project management of Labor Tempelhof. For example, a free public transport ticket for the day of the event could be included in the concert ticket. Arno Schwarz, business development manager at mobility company Pepper motion, meanwhile, wants to enable locally emission-free touring in the coming years with a range of electrically powered semi-trucks and nightliners in operation. To this end, the company is converting diesel commercial vehicles to a battery drive. “We want to create a pool of electric commercial vehicles by 2024/25, including charging infrastructure through aggregates,” Schwarz said. There is a great demand for this among artists and events, but so far such a service has been completely lacking.

Deeper insights into the Tempelhof laboratory

Further insights into the project were provided by Dr. Anne Lamp, CEO & Co-Founder of Traceless, a start-up specializing in the production of a plastic alternative. For Labor Tempelhof, French fry forks were to be made from this material, but the C2C solution could not be scaled up in time. “Prototypes came out, but mass production was not yet possible in terms of time before the concerts. In the meantime, however, we are able to produce in larger quantities and we are very happy to have kicked off in the direction of C2C disposable cutlery,” she said, describing the process. The fully compostable material should be able to replace a significant amount of plastic in the future.

A circular economy according to Cradle to Cradle must go hand in hand with digitization in order to make material flows measurable and transparent in terms of quality and quantity – this became clear in the next impulse.

For me, digitization is the cornerstone of a functioning circular economy, because we need to record what’s in where. This is how we can make a data exchange more tangible

explained Katrin Bahlo, Product Manager at digital materials platform Madaster Germany. Technology can be a tool for truly sustainable solutions, added Miriam Oglesby, project manager at IBM. In the software area, there is great potential for new working models, and in the hardware area, care must be taken to ensure that the individual components can also be separated from one another again.

The Tempelhof laboratory was able to be implemented with 100% green electricity – that is not a matter of course for concerts of this magnitude.

We have found good ways to turn visions into reality. We have to fight to change the structures so that these solutions can become suitable for everyday use

, said Stefan Mohnen, production manager at SBS Eventsupport and responsible for the production of the Labor Tempelhof concerts, from the field. However, implementation only works if there is the will to do so on the part of the event and band, says Mohnen.

zwei Personen männlich gelesen stehen auf Bühne, sprechen vor Publikum
zwei Personen männlich gelesen sitzen auf Bühne, sprechen

Learning from the cultural industry

Finally, Cradle to Cradle and Labor Tempelhof were looked at from a political perspective. Stefan Wenzel, Member of the German Bundestag and Parliamentary State Secretary at the Federal Ministry of Economics and Climate Protection, said that the issues of resources and dependence on raw materials had become the focus of the German government as a result of the war against Ukraine.

We have a dependence on other countries for raw materials. You can see now what the consequences of that can be. That’s why we as a government have put energy supply, climate protection and the circular economy at the top of our agenda

, he said. But for a circular economy to really become a reality, we would have to start integrating external costs into product prices. A lot can be learned from the cultural sector and the Tempelhof laboratory.
Wenzel concluded.

The main program of the event was recorded and can be viewed

Design concept (C2C Design concept)

Humans need to rethink and redesign to solve our climate and resource problem in the long run. The C2C design concept is the guide for this. It is modeled after natural cycles in which any waste is a nutrient for something new. Cradle to Cradle takes into account all ecological, economic and social aspects of products as early as the design phase. Only recyclable materials that are suitable for the specific purpose of a product are used.

Svenja Damberg

Svenja Damberg ist seit 2021 Senior Research Fellow am Institut für Technologie- und Innovationsmanagement der TU Hamburg. Sie ist außerdem Projektmitarbeiterin für Technologie- und Innovationsmanagement und Wissenstransfer bei der Cradle to Cradle-Modellregion Nordostniedersachsen. Damberg schrieb ihre Dissertation im Bereich Kundenmanagement bei Genossenschaftsbanken an der TU Hamburg. Zuvor war sie u.a. beim Recruiting-Technologie-Startup RelinkLabs in Kopenhagen im Bereich Marketing und Kommunikation tätig. Sie hat Business and Development Studies an der Copenhagen Business School studiert.



Svenja Damberg has been a Senior Research Fellow at the Institute for Technology and Innovation Management at TU Hamburg since 2021. She is also a project associate for technology and innovation management and knowledge transfer at the Cradle to Cradle Model Region Northeast Lower Saxony. Damberg wrote her dissertation in the field of customer management at cooperative banks at the TU Hamburg. Previously, she worked in marketing and communications at the recruiting technology startup RelinkLabs in Copenhagen, among others. She studied Business and Development Studies at Copenhagen Business School.

Christoph müller

Christoph Müller arbeitet seit 2015 für die Gebäudewirtschaft der Hansestadt Lüneburg. Dort leitet er aktuell das C2C-inspirierte Probeprojekt „Neubau Hort Anne-Frank-Schule“. Zuvor hat er 9 Jahre als Bauleiter und in der Projektentwicklung gearbeitet. Müller ist gelernter Tischler und Bauingenieur.


Christoph Müller has been working for the building management department of the Hanseatic City of Lüneburg since 2015. There, he is currently managing the C2C-inspired trial project „Neubau Hort Anne-Frank-Schule“. Prior to that, he worked for 9 years as a construction manager and in project development. Müller is a trained carpenter and civil engineer.

Andreas Thürmer

Andreas Thürmer ist seit 2020 Leiter der Geschäftseinheit Strategie, Organisation und Kommunikation bei der Berliner Stadtreinigung. Er ist seit 2001 bei der BSR und war dort als Leiter des Vorstandsbüro, Prokurist und Leiter der Organisationsentwicklung tätig. Zuvor war Thürmer interner Berater bei Audi. Er ist außerdem Vorstandsvorsitzender der Entsorgergemeinschaft der deutschen Entsorgungswirtschaft e.V. und Mitglied im Umweltausschuss der IHK Berlin. Thürmer ist Diplom-Ingenieur und hat an der Universität Stuttgart Maschinenbau studiert.


Andreas Thürmer has been head of the Strategy, Organization and Communication business unit at Berliner Stadtreinigung since 2020. He has been with BSR since 2001, where he served as head of the board office, authorized signatory and head of organizational development. Prior to that, Thürmer was an internal consultant at Audi. He is also chairman of the board of the Entsorgergemeinschaft der deutschen Entsorgungswirtschaft e.V. and a member of the environmental committee of the Berlin Chamber of Industry and Commerce. Thürmer holds a degree in engineering and studied mechanical engineering at the University of Stuttgart.

Peter Kurth

Peter Kurth ist seit 2008 geschäftsführender Präsident des Bundesverbands der Deutschen Entsorgungs-, Wasser- und Rohstoffwirtschaft. Seit 2020 ist der studierte Jurist zudem Präsident des europäischen Entsorgerverbands FEAD. In seiner beruflichen Laufbahn war Kurth unter anderem für die Deutsche Bank und die Kreditbank als Jurist tätig und war von 2001 bis 2009 Vorstandsmitglied des Berliner Entsorgungsunternehmens Alba. Zuvor begleitete Kurth unterschiedliche politische Ämter. Ab 1994 war er Staatssekretär im Berliner Finanzsenat und ab 1999 Finanzsenator. Er war zudem Aufsichtsrat in unterschiedlichen Kreditunternehmen wie der Bankgesellschaft Berlin sowie der Landesbank Berlin und Abgeordneter des Abgeordnetenhauses Berlin.


Peter Kurth has been Executive President of the Federal Association of the German Waste Management, Water and Raw Materials Industry (BDE) since 2008. Since 2020, the law graduate has also been President of the European Waste Management Association FEAD. In his professional career, Kurth has worked as a lawyer for Deutsche Bank and Kreditbank and was a member of the executive board of the Berlin waste management company Alba from 2001 to 2009. Prior to that, Kurth held various political offices. From 1994, he was State Secretary in the Berlin Finance Senate and from 1999 Finance Senator. He was also a member of the supervisory board of various credit companies such as Bankgesellschaft Berlin and Landesbank Berlin, and a member of the Berlin House of Representatives.

Lorena Zangl

Lorena Zangl arbeitet seit 2017 in der hauptamtlichen Geschäftsstelle der C2C NGO. Seit 2020 leitet sie als Referentin den Bereich Kommunale Entwicklung und betreut in dieser Funktion das Netzwerk C2C Regionen. Außerdem ist sie für die Erarbeitung eines Leitfadens für kommunale Beschaffung und C2C verantwortlich. Sie studierte “Political & Social Studies” und “Öffentliches Recht” an der Universität in Würzburg und absolvierte den Master Global Change Management an der Hochschule für nachhaltige Entwicklung in Eberswalde. Zuvor sammelte sie Arbeitserfahrungen im Stiftungsbereich, verschiedenen NGOs für Umwelt und Soziales und Bundespolitik.

Lorena Zangl has been working for C2C NGO since 2017. Since 2020, she has been head of the Municipal Development department and, in this capacity, oversees the “C2C Regions Network”. She is also responsible for the development of a guide for municipal procurement and C2C. She studied “Political & Social Studies” and “Public Law” at the University of Würzburg and completed a Master’s degree in Global Change Management at the University for Sustainable Development in Eberswalde. Previously, she gained work experience in the foundation sector, various environmental and social NGOs and federal politics.

Ilse Beneke

Ilse Beneke leitet seit 2016 die Kompetenzstelle für nachhaltige Beschaffung beim Beschaffungsamt des Bundesministeriums des Innern und für Heimat, wo sie sich mit der praktischen Implementierung von Nachhaltigkeitskriterien in öffentlichen Auftragsvergaben befasst. Zuvor war sie Referentin im Ministerium für Umwelt, Gesundheit und Verbraucherschutz des Landes Brandenburg. Beneke ist Volljuristin mit Spezialisierung Umweltrecht und hat 2013 berufsbegleitend ihren Master zum Thema “Responsible Management” abgeschlossen.



Ilse Beneke has headed the Competence Center for Sustainable Procurement at the Procurement Office of the Federal Ministry of the Interior and Home Affairs since 2016, where she deals with the practical implementation of sustainability criteria in public procurement. Previously, she was an advisor at the Ministry of the Environment, Health and Consumer Protection of the State of Brandenburg. Beneke is a fully qualified lawyer specializing in environmental law and completed her master’s degree in “Responsible Management” in 2013 while working.

Dagmar Schulz

Dagmar Schulz ist seit 2021 erste Landrätin des Landkreises Lüchow-Dannenberg. Sie ist seit 2003 im Landkreis Lüchow-Dannenberg tätig und hat dort unter anderem die Fachbereiche Kultur, Kreisarchiv und Museen, kaufmännisches Gebäudemanagement, Straßenverkehr sowie Jugend-Familie-Bildung geleitet.


Dagmar Schulz has been the first female district administrator of the Lüchow-Dannenberg district since 2021. She has worked in the district of Lüchow-Dannenberg since 2003 and has headed the departments of culture, district archives and museums, commercial building management, road traffic and youth-family-education, among others.


Bernhard Reger leitet seit Mai 2021 die Bereiche Marketing und Unternehmenskommunikation der Leipfinger-Bader Ziegelwerke. Zuvor war er in unterschiedlichen Kommunikations- und Marketingagenturen tätig, unter anderem als Mitgründer und Teilhaber der Agentur Synektar und Inhaber und Gründer von reger’s Design- und Kommunikationsagentur. Reger ist gelernter Werbekaufmann und Diplom-Kommunikationswirt.


Bernhard Reger has been in charge of marketing and corporate communications at Leipfinger-Bader Ziegelwerke since May 2021. He previously worked in various communications and marketing agencies, including as co-founder and partner of the Synektar agency and owner and founder of reger’s design and communications agency. Reger is a trained advertising merchant and holds a degree in communications.

Vanja schneider

Vanja Schneider ist seit 2020 Geschäftsführer und Strategieverantwortlicher der Moringa GmbH. Zuletzt war er als Geschäftsführer der Interboden-Gruppe unter anderem für das Projekt The Cradle in Düsseldorf verantwortlich. Schneider ist Bau- und Wirtschaftsingenieur und seit 1991 in der Immobilienwirtschaft, vor allem in der Immobilienentwicklung, tätig.

Vanja Schneider has been Managing Director and Head of Strategy at Moringa GmbH since 2020. Most recently, as Managing Director of the Interboden Group, he was responsible, among other things, for The Cradle project in Düsseldorf. Schneider is a civil and industrial engineer and has been working in the real estate industry, primarily in real estate development, since 1991.

sören bartol

Sören Bartol ist seit Dezember 2021 Parlamentarischer Staatssekretär im Bundesministerium für Wohnen, Stadtentwicklung und Bauwesen. Zuvor war er von 2013 bis 2021 stellvertretender Vorsitzender der SPD-Bundestagsfraktion. Seit 2002 ist Bartol direkt gewähltes MdB für den Wahlkreis Marburg-Biedenkopf. Er ist seit vielen Jahren für die Themen Bau, Wohnen und Stadtentwicklung zuständig, u.a. als Arbeitsgruppensprecher im Bundestag. Bartol ist Diplom-Politologe.

Sören Bartol has been Parliamentary State Secretary at the Federal Ministry for Housing, Urban Development and Building since December 2021. He was previously deputy chairman of the SPD parliamentary group from 2013 to 2021. Since 2002, Bartol has been a directly elected Member of Parliament for the constituency of Marburg-Biedenkopf. He has been responsible for the topics of construction, housing and urban development for many years, including as a working group spokesman in the Bundestag. Bartol holds a degree in political science.

Dr. hans georg brendle

Dr. Hans Georg Brendle ist seit 1997 Research & Development Manager bei der J. Rettenmaier & Söhne GmbH+Co KG, zu der unter anderem JRS Petcare gehört. Er ist Diplom-Chemiker und hat an der Eberhard Karls Universität Tübingen promoviert. Er beschäftigt sich unter anderem mit der mechanischen und chemischen Verarbeitung von pflanzlichen Zellstoffen für Anwendungen in Pharma, Lebensmitteln und Technik.


Dr. Hans Georg Brendle has been Research & Development Manager at J. Rettenmaier & Söhne GmbH+Co KG, which includes JRS Petcare, since 1997. He holds a degree in chemistry and a doctorate from Eberhard Karls University in Tübingen. Among other things, he is involved in mechanical and chemical processing of cellulosic plant material for pharmaceutical, food and technical applications.

Thomas Bader

Thomas Bader ist Gründer und Geschäftsführer der Leipfinger-Bader GmbH sowie Gründer & Geschäftsführender Gesellschafter der Bader Media GmbH. Darüber hinaus hält Bader diverse Aufsichtsrats- und Vorstandspositionen inne, beispielsweise beim Bundesverband der Deutschen Ziegelindustrie e.V. Er ist Diplom-Ingenieur und Diplom-Kaufmann.

Thomas Bader is founder and managing director of Leipfinger-Bader GmbH as well as a founder & managing partner of Bader Media GmbH. In addition, Bader holds various supervisory board and executive board positions, for example at the Bundesverband der Deutschen Ziegelindustrie e.V. He holds a degree in engineering and a degree in business administration.

Dipl. agr. Ing.
Aloys Oechtering

Aloys Oechtering ist seit 1989 Bereichsleiter im Unternehmensbereich organische Abfälle, Biomasse und Bioenergie der Unternehmensgruppe Remondis. Er ist außerdem Geschäftsführer verschiedener Spezialgesellschaften für organische Abfälle, wie Remondis SmartRec, und Aufsichtsratsmitglied verschiedener Beteiligungsgesellschaften mit kommunalen Partnern. Oechtering ist in diversen Verbänden, wie beispielsweise dem Entsorgerverband BDE tätig. Er studierte Agrarwissenschaften an der TU München und der Universität Göttingen.




Aloys Oechtering has been head of the organic waste, biomass and bioenergy division of Remondis Group since 1989. He is also managing director of various specialist companies for organic waste, for example Remondis SmartRec, and a member of the supervisory boards of various associated companies with municipal partners. Oechtering is active in associations such as the BDE. He studied agricultural sciences at the Technical University of Munich and the University of Göttingen.

Manuel Ehlers

Manuel Ehlers ist seit 2016 Head of Sustainable Property der Triodos Bank. Seit 2021 ist Ehlers außerdem Mitglied im Immobilienbeirat der DGNB. Zuvor war er als Projektentwickler viele Jahre mit der Konzeption und Realisierung von Immobilienprojekten in Berlin betraut. Er ist gelernter Wirtschaftsingenieur mit einer Spezialisierung auf nachhaltiges Bauen.


Manuel Ehlers has been Head of Sustainable Property at Triodos Bank since 2016. Since 2021, Ehlers has also been a member of the DGNB’s Real Estate Advisory Board. Previously, he worked for many years as a project developer and was in charge of the conception and realization of real estate projects in Berlin. He is a trained industrial engineer specialized in sustainable construction.

André Siedenberg

André Siedenberg ist seit 2014 bei der Kommunal Agentur NRW GmbH in Düsseldorf als Berater für kommunale Beschaffung tätig. Seit 2015 ist er außerdem als Rechtsanwalt zugelassen. Er vertritt öffentliche Auftraggeber in Nachprüfungsverfahren, hält Seminare zum Vergaberecht und unterstützt Nichtregierungsorganisationen in allen Fragen der nachhaltigen Beschaffung. Zuvor war er im Ministerium für Wirtschaft, Energie, Industrie, Mittelstand und Handwerk des Landes Nordrhein-Westfalen im Referat für Vergaberecht tätig. Siedenberg studierte Rechtswissenschaften und Europäisches Recht an der Julius-Maximilians-Universität Würzburg.


André Siedenberg has been working as a consultant for municipal procurement at Kommunal Agentur NRW GmbH in Düsseldorf since 2014. He has also been admitted to the bar in 2015. In this capacity, he represents public contracting authorities in review proceedings, holds seminars on public procurement law, and supports NGOs in all matters of sustainable procurement. Previously, he worked at the Ministry for Economic Affairs, Energy, Industry, SMEs and Trade of the State of North Rhine-Westphalia in the department for public procurement law. Siedenberg studied law and European law at the Julius Maximilian University of Würzburg.


Natalie Rottmann-Boos ist seit 2020 als Projektmanagerin in der Kompetenzstelle für sozial verantwortliche Beschaffung bei Immobilien Bremen tätig. Dort unterstützt sie den kommunalen Einkauf bei Ausschreibungen und bringt eine sozial-ökologische und zirkuläre Beschaffung voran, beispielsweise mit dem Projekt „SDG 12: Fair handeln und beschaffen `Made in Bremen´“. Zuvor war Rottmann-Boos zehn Jahre lang als Projektmanagerin im Offshore-Windkraftbereich tätig.


Natalie Rottmann-Boos has been working as a project manager in the competence center for socially responsible procurement at Immobilien Bremen since 2020. She supports the purchasing department in tenders and promotes social-ecological and circular procurement, for example with the project “SDG 12: Fair trade and procurement `Made in Bremen´”. Before that, Rottmann-Boos worked as a project manager in the offshore wind power sector for ten years.


Sybille Mai ist Leading Consultant und Standortverantwortliche in Berlin für die EPEA GmbH, mit Schwerpunkt Cradle to Cradle im Bau. Zwischen 2008 und 2015 baute sie bei Drees & Sommer in Berlin die Beratungskompetenzen zur Nachhaltigkeit auf und begleitete als DGNB-Auditorin und LEED-AP eine Vielzahl von Green-Building-Zertifizierungen. Weitere Stationen führten die Diplom-Wirtschaftsingenieurin als Abteilungsleiterin für Immobilienmanagement und Geländeentwicklung zur Messe Berlin sowie in die verantwortliche Projektsteuerung.



Sybille Mai is Leading Consultant and Site Manager for EPEA GmbHs Berlin office, with a focus on Cradle to Cradle in construction. Between 2008 and 2015, she built up sustainability consulting expertise at Drees & Sommer in Berlin and, as a DGNB auditor and LEED-AP, accompanied a large number of Green Building certifications. Further positions led her to Messe Berlin as head of department for real estate management and site development as well as into responsible project management. Mai holds a diploma degree in industrial engineering.


Nora Sophie Griefahn ist Co-Gründerin und geschäftsführende Vorständin von Cradle to Cradle NGO. Die Umweltwissenschaftlerin koordiniert die politische und wissenschaftliche Arbeit der 2012 gegründeten gemeinnützigen Organisation und treibt ein Umdenken in Wissenschaft, Politik, Bildung und Gesellschaft voran, das mehr als nur Klimaneutralität zum Ziel hat. Sie ist als Expertin für Cradle to Cradle und eine klimapositive Zukunft gefragt und spricht darüber auf Veranstaltungen sowie als Gastkommentatorin oder Gesprächspartnerin in Printmedien und digitalen Formaten.  Darüber hinaus lehrt Griefahn an verschiedenen deutschen Hochschulen. 



Nora Sophie Griefahn is executive managing director and co-founder of Cradle to Cradle NGO. She majored in Environmental Sciences at Leuphana University Lüneburg and Goethe University Frankfurt with stays at University of Natural Resources and Life Sciences in Vienna and University of Copenhagen. As the only German, she was elected as a GreenBiz’ 30 Under 30 inspiring young leader in 2018. 

In 2012, she co-founded Cradle to Cradle NGO (C2C NGO) with Tim Janssen in order to establish Cradle to Cradle principles in economy and politics. C2C NGO connects the fields of business, education, politics, and civil society by creating networking platforms and educational formats. 

As co-executive director, Nora coordinates the NGOs scientific, political and educational work and actively shapes a new understanding of material health and circularity. Nora is a sought-after expert, speaker and panelist on Circular Economy and Cradle to Cradle with a broad expertise in chemical construction, healthy product design, and the coherences between climate change and resource scarcity. Furthermore, she is a member of various scientific advisory councils and a lecturer at the Technical University of Berlin.


Tim Janßen ist geschäftsführenden Vorstand und Mitbegründer der gemeinnützigen Cradle to Cradle NGO. Er studierte Wirtschaftswissenschaften an der Leuphana Universität Lüneburg und der Dualen Hochschule Baden-Württemberg. Dabei lag sein Fokus auf Gründung, Innovationsmanagement und verantwortungsvollem Wirtschaften. Auslandsaufenthalte führten ihn an das Athlone Institute of Technology in Irland, sowie die Universität Wien im Rahmen eines PROMOS- Stipendiums des DAAD.

Aus der Idee heraus, die Cradle to Cradle Denkschule und das Designkonzept in die Mitte der Gesellschaft zu tragen, gründete Tim Janßen 2012 C2C NGO mit und leitet diese seither als Co-Geschäftsführer. Dabei entwickelt er Strategien, um eine maximale Wirkung der Organisation auf die Gesellschaft zu erreichen, und gestaltet aktiv das Wachstum der noch jungen, stetig größer werdenden Bewegung.

Tim Janßen hält als Redner zahlreiche Fachvorträge auf nationalen und internationalen Konferenzen und Fachtagungen und gibt sein Wissen um Cradle to Cradle an Fachpublikum und Interessierte weiter. Des Weiteren lehrt er als Hochschuldozent an der Dualen Hochschule Baden-Württemberg (DHBW), Leuphana Universität Lüneburg, HS Mittweida sowie der TU Berlin.


Tim Janßen is executive director and co-founder of Cradle to Cradle NGO. He majored in Business, Entrepreneurship, Innovation and Leadership at Leuphana University Lüneburg and Duale Hochschule Baden-Württemberg (DHBW). In 2012, he co-founded Cradle to Cradle NGO (C2C NGO) with Nora Sophie Griefahn. C2C NGO connects the fields of business, education, politics, and civil society by creating networking platforms and educational formats. In 2019, the NGO established the C2C LAB in Berlin: the world’s first renovation in an existing building based on Cradle to Cradle criteria. Serving as an educational center, NGO head office, and real-world laboratory, it is here where the C2C school of thought and design concept become reality. As co-executive director, Tim develops strategies to maximize the organization’s impact on society and actively shapes the growth of this young, ever-growing movement. He is a sought-after expert for Cradle to Cradle, Circular Economy and Social Entrepreneurship. He regularly holds keynotes and partakes as panelist at national and international conferences. Furthermore, Tim is a lecturer at DHBW, Leuphana University Lüneburg and TU Berlin.

dr. andreas bukowski

Andreas Bukowski ist seit 2020 Erster Bürgermeister der Gemeinde Haar. Seit 2019 ist er außerdem Vorsitzender des CSU Ortsverbands Haar und des Gewerbeverbands Haar Trudering. Zuvor war er zehn Jahre lang als Leiter Marketing & Vertrieb und als Geschäftsführer der Styx Naturcosmetics GmbH tätig. Bukowski ist promovierter Dr. Phil. und hatte zwischen 2009 und 2013 einen Lehrauftrag an der Ludwig-Maximilians-Universität München.



Andreas Bukowski has been First Mayor of the Bavarian municipality of Haar since 2020. Since 2019, he has also been Chairman of the local branch of the Christian Social Union party in Haar and the Haar Trudering trade association. He previously was Head of Marketing & Sales and Managing Director of Styx Naturcosmetics GmbH for ten years. Mr. Bukowski holds a PhD and was a lecturer at Ludwig Maximilian University in Munich between 2009 and 2013.


Michael Behnke ist seit 2004 General Manager der Markenagentur Belly Button Paris. Seit 2021 vertritt er außerdem ehrenamtlich die Plant Litter Association (PLA) in Deutschland und Frankreich, die sich europaweit dafür einsetzt, Verbraucher*innen und Regierungsorgane auf das Umweltproblem mineralischer Katzenstreu aufmerksam zu machen. 2018 initiierte Behnke eine vergleichende Life-Cycle-Assessment-Studie verschiedener Arten von Katzenstreu, die erstmals das Umweltproblem Mineralstreu wissenschaftlich untersuchte. Er unterrichtet außerdem seit 2014 an der American University of Paris. Zuvor war er unter anderem für die Publicis Group, Young & Rubicam und TBWA Paris tätig.



Michael Behnke has been the General Manager of branding and brand communication agency Belly Button Paris since 2004. Since 2021, he is the honorary representative of the Plant Litter Association (PLA) in Germany and France. The association works across Europe, raising awareness among consumers and governmental bodies about the environmental problem of mineral cat litter. In 2018, Behnke initiated a comparative life-cycle assessment study of different types of cat litter, the first to scientifically examine the environmental problem of mineral litter. He also has been a lecturer at the American University of Paris since 2014. Previously, he worked for the Publicis Group, Young & Rubicam and TBWA Paris, among others.

Vanja schneider

Biografie Text Bei der Cradle to Cradle Certified™-Zertifizierung, die das gemeinnützige Products Innovation Institute (C2CPII) vornimmt, werden verschiedene Faktoren und Ebenen der Herstellung, Nutzung und der Wiederverwertung bewertet. Es gibt fünf Abstufungen in der Zertifizierung von Basic über Bronze, Silber, Gold bis hin zu Platin, welches den höchsten Produktstandard kennzeichnet. Dabei werden die fünf Faktoren Materialgesundheit, Wiederverwendbarkeit, Nutzung erneuerbarer Energien und Kohlenstoffmanagement, Wasserqualität sowie Sozialstandards betrachtet. Weltweit gibt es aktuell knapp 300 C2C-Unternehmen mit über 8.000 C2C-Produkten.