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Horizon Europe Cluster 5 — Climate, Energy and Mobility

Horizon Land and Ocean Carbon

Funds five €5M research projects that improve how land and ocean carbon sources and sinks are measured and reconciled.

ScheduledEuropean CommissionEU

Carbon sinks and sources on land and in the ocean are central to climate scenarios, but their drivers and magnitudes remain uncertain. This scheduled Horizon Europe Research and Innovation Action funds five €5 million projects to improve the evidence used for mitigation strategies, carbon budgets and national reporting.

Each proposal must choose one area and state it clearly: Area A covers oceani

Improve understanding and quantification of land, inland-water and ocean carbon dioxide sources and sinks, their natural and anthropogenic drivers, and their behaviour under past, present and future climate and land-use scenarios. Each proposal selects one area: A, oceanic CO₂ sources and sinks; B, land CO₂ sources and sinks; or C, reconciliation of different land-use CO₂ estimates. Work addresses lateral carbon transfers, mitigation and carbon-removal implications, consistent data and models, open access to new or substantially improved models and tools, and coordination with ESA FutureEO Carbon Cluster projects and relevant international partners.

CycleiHow often this grant runs — e.g. annually, on a rolling basis, or a one-off call.One-off
Next deadlineiThe next date applications are due. Rolling means you can apply any time.4 Mar 2027
Decision timeiTypical time from the deadline to the funder's decision.22 weeks
Project durationiHow long the funded work is expected to run.
Award typeiThe form of funding — grant, equity, loan, tax credit, etc.Grant
Match fundingiThe share of project costs you must cover yourself. 0% = fully funded.0%
Funding pooliThe total budget available across all awards in this round.€25M

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Last verified: 25 Aug 2026Funder reference: HORIZON-CL5-2027-01-D1-12Source: ec.europa.eu