The LOng-LIved greenhouse gas PrOducts Performances (LOLIPOP) project, part of the European Space Agency’s Climate Change Initiative (CCI), organised a two-day user workshop at the CNR Research Area in Bologna, Italy, on November 18-19, 2025. The workshop brought together experts from both the observational and modeling communities, as well as current and potential end users to explore the critical role of Other Long-Lived Greenhouse Gases (OLLGHGs) in climate and atmospheric science and contribute shaping the future of greenhouse gas research.

Background

The ESA CCI delivers high-quality, satellite-derived data of key climate-sensitive variables across various Earth Observation domains. While previous atmospheric chemistry activities have addressed gases like ozone, water vapor, carbon dioxide, and methane, the LOLIPOP CCI project focuses on assessing the quality of satellite data for Other Long-Lived GreenHouse Gases (OLLGHGs), including N2O, SF6, CFCs, HCFCs, and their crucial role in climate and atmospheric modeling. This project aims to address significant knowledge gaps in understanding atmospheric chemistry and climate change drivers.

Workshop objectives

The LOLIPOP workshop provided a dedicated forum to exchange project results, share relevant case studies, and discuss strategies for maximizing the use of OLLGHGs datasets. In particular:

Participants had the opportunity to present their research activities, provide expert feedback on project findings, and build valuable connections across the scientific community.

Agenda and Presentations

Day 1 (Tuesday, November 18, 2025)

Day 2 (Wednesday, November 19, 2025)

ESA CCI LOLIPOP Workshop Final Report (available soon)

Scientific Committee

Local and Logistic Committee