Terrestrial carbon science

Understanding and attribution of land carbon sinks and sources

The understanding and management of terrestrial carbon sinks and sources are vital for climate change mitigation, yet significant open questions remain regarding their magnitude, and drivers, as well as future stability of ecosystems. By combining Earth observation, in situ measurements and modelling, the ESSI alliance could help close these gaps and strengthen carbon assessments from national to global scales.

This new and forming ESSI Alliance will bring together projects selected under the mentioned Horizon Europe topic with complementary projects funded through ESA’s FutureEO programme. The projects forming the Alliance will jointly work towards closing knowledge gaps in terrestrial carbon science and assessments, while making use of state-of-the-art Environmental Observations technology, data products and related methodologies.  

Consortia are now invited to form and hand in proposals for future EC and ESA calls for tenders. Once respective project portfolios are confirmed, a formal alliance kick-off will be organized to discuss and refine practical modalities of cooperation across the land carbon and land-use emissions reconciliation areas of this call. The Alliance partners are invited to propose their own joint activities and outputs. These might include: 

  • Aligning datasets, scenarios and model assumptions; 
  • Facilitating access to and uptake of satellite products and related methodologies; 
  • Coordinating data-management and open science approaches; 
  • Developing shared outputs such as jointly defined datasets, open tools, joint publications, community standards, assessment contributions and policy briefs. 

Further exchanges during Horizon Europe Annual Meetings, relevant scientific workshops and conferences are encouraged, to provide opportunities to identify additional cooperation based on the evolving needs and added value for participating projects. 

Contributing EC & ESA Calls

EC

Better understanding and attribution of land and ocean carbon sources and sinks

Horizon Europe Topic Opening (planned) – 17 November 2026
Horizon Europe Topic Closure (planned) – 04 March 2027