12 January 2005; Demographischer Wandel und Neuinterpretation der Gleichwertigkeit der Lebensverhältnisse; Universität MÜnster.
12 January 2005; Kommunale Infrastrukutur im demographischen Wandel; KNIFF-Tagung, Everswinkel
2 February 2005; Kommunen und Regionen im demographischen Wandel; Kommunalkongress 2005, Berlin.
3 February 2005; Der demografische Wandel als Chance für einen gesellschaftlichen Innovationsschub; 6. Top-Seminar für AbteilungsleiterINNen der Ministerien, DHV, Speyer.
5 October 2006; IT-Aus- und Weiterbildung: Chance und Herausforderung für Wirtschaft und Hochschule; Gesellschaft für Informatik Jahrestagung, Dresden.
27 February 2007; Überlegungen zum Reformbedarf der deutschen Arbeitsmarktverfassung; Symposium Entwicklungspotentiale der deutschen Arbeitsmarktverfassung, Berlin.
1 March 2007; Demographic Change in Germany and its Implications; Presentation to Commission for Future Generations of the Knesset, Jerusalem.
20 January 2012; Faktische Grenzen: Die Stimme der Stiftungen in der Einflusskonkurrenz; Unternehmensstiftungen als Themensetzer, Bundesverband Deutscher Stiftungen, Berlin.
Summer 2012; Bernhard Lorentz, Johannes Meier (Hrsg.); Strategische Philanthropie zum Klimaschutz – Ansätze am Beispiel der Stiftung mercator und der European Climate Foundation; Stiftung & Sponsoring, Sonderausgabe.
23 May 2013; The public discourse on the new energy system – the viewpoint of the ECF; ESMT, Erftstadt.
9 August 2013; The end of business as usual; Lecture University of Hawaii, Honolulu.
9 September 2013; How to promote a more efficient dialogue between science, innovation, technology and society?; JRC Roundtable, Brussels.
26 September 2013; The end of BAU; Baden-Badener Unternehmergespräche, Baden-Baden.
13 November 2013; The end of BAU; Österreichische Internationale Gesellschaft, Wien.
25 November 2013; Interview; Can Europe Manage the Transition to a Low-carbon Economy?; European Energy Review.
13 December 2013; The end of BAU; Lecture Tufts University, Boston.
6 February 2014; Keynote: Energy and Competitiveness – The dilemmas of transition to a low-carbon economy; Premier Circle Conference, Brussels.
24 April 2014; Resolving the trilemma of competitiveness, sustainability and security of supply; Chair Europe Conference, Brussels.
8 May 2014; Fundamental Dilemmas of Europe’s Energy Transition; Clingendael, The Hague
12 June 2014; Keynote: A framework for cooperation; BSR Spring Forum 2014, Paris.
25 June 2014; To invest or not to invest in the low-carbon transition; Acton Partners Meeting, Munich.
24 October 2014; Resolving the dilemma between sustainability and competitiveness; Polytalk 2014, Brussels.
12 November 2014; Weltweit operierende Stiftungen und die Klimadebatte; GermanWatch Forum, Bonn.
2 December 2014; The road to Lima; Conference on chances and challenges for EU Climate and Energy Policy, Brussels.
11 February 2015; Europe and UK leadership on climate action; Carbon Reduction 2015 Conference, London.
6 March 2015; Transformative change and philanthropy; Strategic Philanthropy Conference, Stanford.
7 May 2015; Weltweit operierende Stiftungen und die internationale Klimadebatte; Deutscher Stiftungstag, Karlsruhe.
12 May 2015; Five observations on Germany’s and Europe’s Energiewende; McKinsey Sustainability Summit, Kitzbühel.
14 June 2015; How to overcome logjams in strategic philanthropy; Swiss Philanthropy Circle, Geneva.
19 August 2015; post-Paris pivot: considerations for philanthropy, Foundation Roundtable hosted by IKEA Foundation, Leiden.
1 September 2015; What will it take to create transformative change in the EU?, Foundation Roundtable, Copenhagen.
7 October 2015; How to achieve transformative change; Keynote at Shell gas manager meeting, The Hague.
10 November 2015; What are the stakes of the EU towards COP21?, HLG conference on EU stakes post-COP21, Brussels.
23 February 2016; The road through Paris; Lecture Tufts University, Boston.
10 March 2016; Cooperation, innovation, reputation; Keynote at Shell senior manager meeting, The Hague.
19 May 2016; Transformation, innovation, reputation – Navigating the complexities of the low carbon transition; McKinsey Future Energy Leader Summit, Amsterdam.
22 June 2016; The road through Paris – Perspectives for US-EU cooperation; US EU-Mission, Brussels.
10 August 2016; Transformative change and innovation in the low-carbon transition; Keynote at Opening of The Villum Center for the Science of Sustainable Fuels and Chemicals, Copenhagen.
25 September 2017; Working effectively with intermediaries; Oak Foundation, Geneva.
17 November 2017; The geopolitical framework for climate protection – The role of corporations, governments, science and civil society; ALDI-SUED Global Sustainability Manager Meeting, Mühlheim.
13 March 2018; Fostering resonance in a complex stakeholder ecology; Climate and Land Use Alliance, San Francisco.
7 Oktober 2018; Klimawandel und Verantwortung – Welche Optionen hat der Handel?; Trendwoche ALDI-SÜD/HOFER, Sattledt.
4 Juli 2019; Beyond Neoliberalism; Doctoral Summer School on Growth vs. Sustainability; HHL, Leipzig.