Our 3rd Meeting, which this time was held online, brought together more than 60 researchers and experts. Each year, together with our Scientific Advisory Board (SAB), we take the opportunity to review the project’s achievements and discuss the next steps for our greenhouse gas research activities. Over two days, we shared highlights of our work, presenting new scientific results and showcasing the high-quality datasets developed over the past year. The SAB commended the project’s outstanding scientific progress, recognising major advances in greenhouse gas modelling, data integration, and the development of innovative tools such as Fluxy, which makes complex scientific information easier to analyse and compare. The board also highlighted the project’s strong collaborative spirit, both within the consortium and with external partners. In particular, our close collaboration with national greenhouse gas inventory teams was highly appreciated as those activities help to bridge gaps between these two communities, e.g., the still‑limited use of third‑party emission data from the scientific community for verifying national inventory reports, as well as the sometimes incomplete understanding of key inventory concepts within the atmospheric science community.  

While it is encouraging to reflect on what has gone well, it is equally valuable to identify where we can improve. Alongside this very positive assessment, we discussed opportunities to further strengthen the project’s impact. Recommendations included continuing to improve data management processes, making datasets easier to update over time, and increasing efforts to communicate scientific results to policymakers and other stakeholders. Expanding our international collaborations and continuing to work with organisations such as ICOS and the World Meteorological Organization will also help shape future approaches to greenhouse gas assessment and monitoring.

An important topic of discussion was how to ensure that the achievements of PARIS continue beyond the current funding period — a challenge shared by many research projects. Encouragingly, the first steps have already been taken. PARIS results are being presented at major international events, collaboration with related European initiatives is growing, and successful tools and methods are being embedded into long-term research infrastructure. By combining scientific excellence with strong partnerships and increasing policy engagement, PARIS has already built a solid foundation for lasting impact. Our results and outputs help to improve greenhouse gas monitoring and providing valuable evidence to support future climate policies and international collaboration.