Carbon capture and storage (CCS) is regarded as a key technology to mitigate CO2 rise in the atmosphere and the consequences of global warming. CCS through mineral carbonation expands the application of CO2 storage and opens new CCS plays worldwide. In CCS through mineral carbonation, CO2 is injected into a reactive rock. Chemical reactions lead to mineralisation and permanent sequestration of CO2 in the rock. In Iceland and the USA, this technology is being successfully tested in mafic and ultramafic rocks. In Switzerland, ultramafic and mafic rocks occur associated with methamorphic and igneous rocks. In addition, there are sedimentary deposits in Switzerland that are rich in mafic minerals. The aim of this research project is to carry out an initial screening of CCS plays through mineral carbonation in Switzerland.