Talks 2004
13.01.2004 "Aus der Klimageschichte lernen" University of Lüneburg, Germany.
21.01.2004 "Ocean Currents Past Changes and Future Surprises?" IGBP Booklaunch, Stockholm, Sweden.
28.01.2004 "Understanding Dansgaard-Oeschger Events" University of South Florida, St. Petersburg, USA. 
20.02.2004 "A Cosmic Influence on Climate? Timing of Dansgaard-Oeschger Events" Astrophysical Institute, Potsdam, Germany.
01.03.2004 "Was ist los mit unserem Klima?" Urania, Berlin, Germany.
20.03.2004 "Was ist los mit unserem Klima?" Elbe Symposium, Dessau, Germany.
24.03.2004 "Kosmische Einflüsse auf das irdische Klima" Sternwarte, Berlin, Germany.
09.04.2004 "Towards a Theory of Dansgaard-Oeschger Events" Comer Fellowship, New York, USA.
07.05.2004 "Climate Change: Future Surprises? The Question of Abrupt Climate Change" CEC European Union, Brussels, Belgium.
19.05.2004 "Abrupt Events and Surprises" IPCC Expert Meeting, Buenos Aires, Argentina.
28.05.2004 "The Risk of Ocean Circulation Changes" Workshop Challenges in Climate Sciences, Blois, France.
02.06.2004 "Abrupt Climate Changes and the Gulf Stream" Workshop Global Change - A Planet under Pressure, Copenhagen, Denmark.
03.06.2004 "Ocean Circulation and Abrupt Climate Change." Gaia Workshop, Totnes, United Kingdom.
21.06.2004 "Climate Change: Natural and Anthropogenic Forcing, UNFCCC, Side Event, Bonn, Germany.
01.07.2004 "Klimawandel: Welche Rolle spielt der Mensch?" Mitgas, Leipzig, Germany.
11.08.2004 "Abrupte Klimawechsel und Meeresströmungen" Cusanuswerk, Regenstauf, Germany.
19.08.2004 "Certainty / Uncertainty in Climate Science and Politics" Big Sky Resort, Montana, USA.
26.08.2004 "Abrupt Climate Change - Are the Pentagon and Hollywood right?" Euro Science Meeting, Stockholm, Sweden.
02.09.2004 "Klimawandel: Was ist dran?" Studienstiftung des Deutschen Volkes, St. Johann, Tirol.
15.09.2004 "Klimawandel: Ursachen und Folgen" Herbstversammlung Württembergische Weingärtner, Großbottwar, Germany.
05.10.2004 "Klimawandel: Ursachen und Folgen" BMW Group, Den Haag, The Netherlands.
06.10.2004 "Stochastic resonance in abrupt glacial climate change " Max Planck Institute, Dresden, Germany.
20.10.2004 "CO2 and Climate Change - What do we really know?" Global Peak Oil Gathering, Koblenz, Germany.
27.10.2004 "Risk of Rapid or Abrupt Change in the Climate System" ECF Symposium, Bejing, China.
28.10.2004 "Risk of Changes in the Thermohaline Circulation and Possible Impacts" ECF Symposium, Bejing, China.
04.11.2004 "Abrupt Climate Change - Lessons from the Past" University of Edinburgh, Scotland.
18.11.2004 "Klimawandel - Die Notwendigkeit von Klimaschutz" Forum Solarpraxis, Berlin Germany.
18.11.2004 "Ocean Circulation in Climate Change" Potsdam Ringvorlesung, Germany.
22.11.2004 "Klimawandel - Welche Rolle spielt der Mensch?" University Oldenburg, Germany.
23.11.2004 "Klimawandel - Zwischen Wissenschaft und Medien" Messezentrum Bremen, Germany.