The CIRCASA (Coordination of International Research Cooperation on soil Carbon Sequestration in Agriculture) aims to develop international synergies concerning research and knowledge transfer at EU and global levels. 
The CIRCASA encompasses four objectives:

Strengthen the international research community on soil carbon sequestration in relation to climate change and food security;
Improve our understanding of agricultural soil carbon sequestration and its potential for climate change mitigation and adaptation and for increasing food production;
Co-design a strategic research agenda with stakeholders on soil carbon sequestration in agriculture;
Better structure the international research cooperation in this field.

Through its host organisation, the NZAGRC is a partner in this project, whose aim is to enhance carbon in agricultural soils would deliver cost-effective GHG mitigation, climate changeadaptation of agriculture and enhanced agricultural yields, but implementation involves large challenges.
Several major international initiatives are involved in CIRCASA through partners:

The GRA, through its Special Representative and through the Integrative Research Group  
FACCE-JPI
The 4 per 1000 initiative
The Intergovernmental Technical Panel on Soils (ITPS) of the Global Soil Partnership (GSP)
Two research programs of the CGIAR: CCAFS (Climate Change Agriculture and Food Security) and the Water, Land & Ecosystems (WLE)
The CaSA (Soil Carbon for Sustainable agriculture in Africa) network

More information about the NZAGRC and New Zealand's research involvement will be made available soon.