How Existing REDD+ Guidance Meets ICAO’s Emission Unit Criteria

By Peter Graham and Anthony Mansell

January 2018

The 192 Parties to the International Civil Aviation Organization have agreed to a set of Emission Unit Criteria (EUC) to measure programs for eligibility in the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA). This paper demonstrates how emission reduction units generated from forest programs under the United Nations Framework Convention on Climate Change (UNFCCC) “Warsaw Framework for REDD+” meet these criteria.


The UNFCCC recognizes the critical importance of protecting the world’s forests, which, if cut down, would release more carbon than is currently in the world’s atmosphere. Halting tropical deforestation and allowing forests and other carbon rich ecosystems to regrow can provide 30% or more of the emissions reductions and sequestration needed to limit warming to below 2°C. Scientists warn that limiting global warming to 1.5 °C or even 2 °C will be impossible to achieve if the world does not change how it uses its land-based resources, particularly tropical forests.

The UNFCCC’s 2015 Paris Agreement specifically encourages Parties to implement and support the Warsaw Framework for REDD+. The 2016 ICAO Assembly Resolution establishing CORSIA instructs the Council, in developing the Standards and Recommended Practices (SARPs) to support CORSIA, and with the technical contribution of the Committee on Aviation Environmental Protection (CAEP), to consider relevant developments in the UNFCCC.  It is therefore proper to consider how REDD+ programs implemented under the UNFCCC Warsaw Framework meet the CAEP/10-recommended CORSIA criteria.

The following table details how the Warsaw Framework fulfills each criterion.