PARIS at EGU2026

Connecting Atmospheric Observations and Emission Inventories

Our research within PARIS was well represented at EGU2026, showcasing how atmospheric observations, modelling and isotope measurements can improve our understanding of greenhouse gas emissions.

A central contribution, “Bridging Science and National GHG Inventories: Insights from the PARIS Project – Process Attribution of Regional Emissions,” presented as a joint effort, highlighted the overall project’s approach to linking atmospheric evidence with national greenhouse gas inventories and identifying regional emission sources.

Methane was a major focus. Contributions included continuous isotope measurements at sites across Europe, providing information on methane source types and regional source mixtures. PARIS researchers also contributed to discussions on methane mitigation and the broader role of methane sources, sinks and climate feedbacks.

But the PARIS activities extended beyond methane. We also presented atmospheric observations and modelling approaches which were used to identify point sources of halogenated trace gases and to investigate atmospheric transport and distribution. Work on nitrous oxide (N₂O) included comparisons of bottom-up and top-down inventories for Germany, Switzerland and the UK, alongside national-scale modelling of agricultural emissions in Switzerland.

Together, these EGU2026 contributions demonstrated the breadth of the PARIS approach: combining atmospheric measurements, isotope information, transport modelling and emission inventories to better understand greenhouse gas sources and regional emission patterns.

PARIS contributions at EGU2026