The factors presented include strengthening country ownership, greater mainstreaming of environment and climate change in development co-operation, less fragmentation of climate funds and improved access to finance for LDCs and SIDS. The need to define climate finance, enhance transparency and increase the amount and predictability of resources are also considered. The OECD, working alongside other key research and policy partners, can play a role by contributing to work under the UNFCCC to develop a transparency framework for climate finance.