The first eLTER Science conference will take place on June 23-27, 2025 in Tampere, Finland. Scientific sessions will span from Unravelling the mysterious role of groundwater in ecosystem dynamics to Ecosystem restoration, Novel technologies in environmental monitoring, and Integrated observations in the atmosphere-biosphere continuum. Policy-relevant sessions include e.g. Carbon farming and Studying the sustainability of globally embedded socio-ecological systems. Prominent Keynotes will present inspiring talks and the participants will have the opportunity to make either oral or poster presentations. The Conference will also feature a number of interactive workshops on data, arts, co-design of services etc. And last but not least, guided excursions to four interesting sites will be arranged (including Hyytiälä SMEAR II LTER Site, Lammi LTER Site, Seitseminen National Park and Tammela peatland restoration site). Abstract Submission is open by January 17, 2025.