We need to lower our CO2 emissions systematically if we want to achieve our climate targets. Insulating buildings is a key part of this. Researchers from the Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT in Oberhausen have been working in collaboration with PROCERAM GmbH & Co. KG to develop a sustainable, affordable mineral-based insulation material that is far more effective than options such as polystyrene. This material can achieve the same level of insulation as polystyrene with only half the layer thickness. Three members of the development team are being awarded the Joseph von Fraunhofer Prize 2023 for this achievement.