The MDB methodology, by focussing on specific climate components, differs from the CRS Rio markers, which capture total project costs. The MDBs and the International Development Finance Club (IDFC) have also established common principles for climate finance tracking for mitigation (MDBs and IDFC, n.d.) The principles consist of a set of common definitions and guidelines including the list of activities. This is a publishing standard that aims to make data on aid “easier to use, access and understand” (IATI, 2016a). Data from more than 480 organisations9 - many not working on climate, but some working specifically or partially on climate issues, such as the Adaptation Fund and Agence Franqaise de Developpement - is available. In theory, the dataset allows searches via a “policy marker” (such as climate).