Klaus Regenauer-Lieb is an expert in geomaterials under extreme conditions. He holds a PhD from the Geothermal Institute, the University of Auckland with a broad background from the world-leading institutions comprising the Swiss ETH Zurich, the Minnesota Supercomputer Institute and other international institutions. He is working towards a merger of Engineering and Science Disciplines in order to support the needed transition to cleaner energy and mineral resources. His interdisciplinary publications are at the forefront of new fields in mathematical geophysics, computational geodynamics, geomechanics, and reservoir engineering. Together with his research team, he has developed a framework to explore for energy and minerals under extreme conditions (e.g. geothermal reservoirs, mineral harvesting from deep fluids). This novel framework allows the resource industry to intelligently predict where to best look for particular resources, how to characterise and upscale the material behaviour and how to best stimulate the reservoir.