Global ecosystems provide services that sustain society, including provisioning of food, fiber and timber, and water cycle regulation. Understanding ecosystem-atmosphere interactions, and the response of these to ongoing environmental change, is thus an urgent challenge. FLUXNET is a global network of regional networks, consisting of scientists measuring the exchange of carbon dioxide, water, energy, and other greenhouse gas fluxes between ecosystems and the atmosphere. Such measurements have proven essential for understanding ecosystem function, calibrating space-borne observations, and developing models used to project future climate. The FLUXNET Coordination Project helps fill fundamental knowledge gaps in science, engineering, and societal issues associated with ongoing changes in ecosystem function and the related cycling of carbon and water. The project links over ten existing national and international networks focused on continuous observations of ecosystem-atmosphere interactions at over 1000 locations around the world. The central goals of the FLUXNET Coordination Project are to provide novel training and exchange opportunities, develop strong international collaborations, and build tools and protocols that ensure continued growth of FLUXNET beyond the life of the project.

In this talk, I will highlight recent initiatives to strengthen collaboration across FLUXNET, including the planned first data release in 10 years – FLUXNET 2025. I will also highlight recent science breakthroughs that the data has enabled, and present the state of the science across scales.