Since we only have one earth, we cannot experiment with the earth itself. The most important processes of the climate system can be reproduced with climate models, and so climate experiments can be done with a model earth without harming our planet. The DKRZ operates Europe's largest climate supercomputer with a performance of over 3.5 billion computing operations per second. On this supercomputer scientists can currently simulate and analyze the climate system and thus natural and man-made climate changes.

In episode #2 of the Scientists for Future podcast, Michael Böttinger, head of the group public relations and visualization at the DKRZ, reports on how climate modeling works and how climate models have developed in recent decades. Tröger and Cauet talk to him about what can be simulated today and where there are uncertainties. How have the projections and their perception changed in the past 30 years? What are the current challenges in climate research? How can the huge data sets that are produced by climate models be analyzed and visualized today?

The latest episode (in German only) lasts about one hour and was published on April 4, 2020. You can listen to or download it at: https://s4f-podcast.de/2020/04/s4f002-deutsches-klimarechenzentrum/