KlimaCampus Kolloquium: Climate change and causal attribution: an overview

Have human emissions been the dominant cause of the observed climate warming? Extremely likely so of course (IPCC, AR5) but what is this statement based upon? And also, what about last Summer's European heatwave? And the wildfires recently affecting western North America, are they also attributable to human influence? How certain are we? And what about the Montreal flood of Spring 2017? And the progression of the Lyme disease in some regions? And the trend in agricultural yields? And the hurricane Florence hitting North Carolina last September? And so on.

Such causal questions are more and more frequently asked to scientists by various sectors of society. Answers partly condition adaptation measures, mitigation policy as well as legal liability. How does science approach them? This seminar will attempt to give an overview of this question.




15:15 h


Bundesstr. 53, room 022/023
Seminar Room 022/023, Ground Floor, Bundesstrasse 53, 20146 Hamburg, Hamburg


Alexis Hannart, Ouranos, Montreal

Alexis Hannart graduated from École Polytechnique and ENSAE (France) in econometrics and data science. He also holds a doctorate in climate science from Pierre and Marie Curie University (France). He worked for several years as a data scientist for risk management in the United States, in the academic sector as a researcher in climate science and as deputy director of a CNRS-INSU laboratory in Argentina. Dr. Hannart joined Ouranos in 2017 as a senior researcher. His dual expertise in climate science and data science is used for several local and international research projects, conducted in close collaboration with academia.


Sebastian Sonntag

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