As noted, MDBs also have the option to report on climate finance through the OECD DAC system. While most of them report activity-level data to the CRS, only the World Bank applies the Rio markers to provide details on the climate change focus of its operations As noted above, the World Bank is also expecting to report to DAC once they have implemented their new methodology to assign a specific share of each project or programme supported to climate change. This would allow for all public climate finance flows, bilateral and multilateral, to be stored in one database, would allow for mainstreaming of definitions and classifications, and would avoid double counting between bilateral and multilateral flows.