This project aims at providing the scientific community with an integrated, cost-efficient and sustainable infrastructure following established standards for data documentation, archiving, search and exchange. The main emphasis is on coordination of efforts and requirements, enhancing interoperability and user interfaces to existing facilities, as well as development of toolboxes for data documentation in order to reduce technical and governance obstacles. The infrastructure must provide online access to data and facilitate long term preservation, in order to maximise the benefit of public funds invested in the datasets. The intention is to link existing institutional and discipline specific systems to promote science regardless of geographical and institutional location. The proposed approach is to further develop the idea of the DOKIPY system, to include more catalogues at each institution, to augment it with user support tools and online data access at all nodes, eventually establishing a unified catalogue for multidisciplinary climate and environmental scientific data. The proposal is not intentionally discipline specific, but in order to show the benefit of synchronised catalogues across institutions and disciplines a stepwise approach is suggested, where potential integration with other disciplines (e.g. human sciences, life sciences etc) is delayed until an acceptable level of interoperability has been achieved for climate and environmental data.