The Australian Research Data Commons (ARDC) is developing the Planet Research Data Commons (Planet RDC), one of a suite of Thematic Research Data Commons that will collaboratively develop and deliver sustainable digital research infrastructure on a national scale. The Planet RDC will support earth and environmental science researchers to develop cross-sector and multi-disciplinary data collaborations on a national scale. It will integrate underpinning compute, storage infrastructure and services with analysis platforms and tools supported by expertise, standards and best practices. It will also bring together data from a range of sources to tackle the big questions. As part of the co-design approach to developing the Planet RDC, the ARDC held consultations in 2022 with national stakeholders. The report summarises the insights gained from the initial discussions with stakeholders and the roundtables. It includes: the data challenges identified by the ARDC through an analysis of the national research and research infrastructure priorities related to earth and environmental research and management feedback from consultations with the ARDC Research and Technical Advisory Committee and the National Earth and Environmental Sciences Facilities Forum (NEESFF) feedback from consultations held with researchers, research infrastructure providers, industry, government, and non-government organisations from the earth and environmental sciences the revised data challenges based on the findings from the consultations. CONTENTS 1. Background 2. ‘What’ - Challenges and Priorities 3. ‘Why’ - Impact and Value Proposition 4. ‘Who’ - National Stakeholders 5. ‘How’ - Implementation Factors 6. Revised Data Challenges 7. More Information Glossary Appendix - Planet RDC Proposed Data Challenges Learn more about the Planet Research Data Commons. Recording of the 10 October roundtable: https://youtu.be/DVAycwGOrw4 Slides from the roundtable: http://doi.org/10.5281/zenodo.7407721