The TeaComposition initiative is carried out by 200 institutions worldwide.

UNILEVER has supplied 63.000 teabags of Roiboos and Green Tea.
The COST action ClimMani (ES1308) has contributed a strong platform for discussions of the need for common metrics in experimental science and through short term travel grants facilitated discussions and fine tuning of methodology and data handling.
The implementation of the TeaComposition initiative is supported through an annual initiative grant. ILTER provided an excellent infrastructure to implement the TeaComposition initiative and a common metric for studying decomposition and C dynamics and storage will provide a strong tool for inter-site comparison within the network as well as with other global networks.
The implementation of litter decomposition in the arctic region was supported through a remote TA access within INTERACT Network (EU H2020 Grant No. 730938).