Upcoming Talks
The lectures are held in English, and everybody interested is welcome to attend. Please note that the Colloquium is an in-person event.
Time: on Thursdays at 3:15 pm during the academic term. From 2:45 pm onwards some welcome coffee and cake will be served in room 024.
Location: room 022/023, Bundesstrasse 53, 20146 Hamburg
Organization:
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Nele Müller, CLICCS/CEN: nele.mueller@uni-hamburg.de, phone +49 (0)40 42838 - 4327
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Christina Rieckers, MPI-M: christina.rieckers@mpimet.mpg.de, phone +49 (0)40 41173 – 159
 
23.10.2025 - Nadir Jeevanjee - Five forecasts of early climate science
Speaker: Nadir Jeevanjee, GFDL
Scientific confidence in the overall global warming forecast is high. But that forecast relies heavily on complex climate models, which require millions of lines of computer code and many dozens of tunable parameters. How can we be so confident in the face of such complexity?
To a significant extent this confidence stems from several predictions made by the earliest climate models, all of which were later confirmed quantitatively by observations. Examples of these successful forecasts include global warming itself, the cooling of the stratosphere, amplified warming over land as well as the arctic, and delayed warming over the Southern Ocean. I will outline these predictions as they arose out of the course of model development led by Syukuro Manabe at Princeton's Geophysical Fluid Dynamics Laboratory, touching on both the basic science behind the predictions as well as their varied and subsequent confirmation.
06.11.2025 - Åsa Wettergren - The time of the end. Perspectives from post-apocalyptic environmentalism.
Speaker: Åsa Wettergren, University of Gothenburg
The transition movement and the collapsologists are part of what research has recently defined as a ‘postapocalyptic’ environmental movement, They share the emotive-cognitive assessment that it is too late to ward off the catastrophic consequences of climate change and ecological degradation and that fossil-driven modernity is already collapsing. Drawing on interviews and observations, the talk highlight how transitioners and collapsologists manage emotions like grief, anxiety, fear and hope, and how the emotive-cognitive realization of living in the time of the end has led to new action-orientations and breaking with their past lifestyles.
20.11.2025 - Matthias Heymann - Investigating environmental coherence: Approaches in the study of human-environment relations
Speaker: Matthias Heymann, Aarhus University
Human societies always had to deal with environmental conditions and challenges. They gained knowledge from environmental experience and developed practices and technologies to cope with the challenges of nature and adapt to environmental conditions. On the other hand, societies transformed their environment to adapt it to cultural needs. Various concepts have been applied to describe society-environment relations, such as sustainability, adaptation, vulnerability and resilience. In this paper, I suggest a broader lens by developing the concept of environmental coherence for historical research and understanding of human-environment relations. I will develop the concept by looking at two specific cases of natural disaster, first, on the island of Strand on the German North Sea coast in 1634 and, second, in Miami Beach, Florida in 1926.
04.12.2025 - Christoph Kinkeldey - Title tba
Speaker: Christoph Kinkeldey, HAW Hamburg
Abstract tba
08.01.2026 - Detlef Lohse - Title tba
Speaker: Detlef Lohse, Max Planck Center Twente for Complex Fluid Dynamics Science and Technology / University of Twente
Abstract tba
15.01.2026 - David Thompson - Title tba
Speaker: David Thompson, Colorado State University
Abstract tba
23.04.2026 - Christian Flachsland - Title tba
Speaker: Christian Flachsland, Hertie School
Abstract tba
04.06.2026 - Mia Cha - Title tba
Speaker: Meeyoung Cha, Max Planck Institute for Security and Privacy (MPI-SP)
Abstract tba
