The costs of adaptation to climate change in developing countries are substantial. Developed countries have commitments to scale up support for adaptation in developing countries particularly in LDCs and SIDS that have little historic responsibility and will bear large relative costs of climate change. CFU data suggests that developed countries have pledged USD 3.3 billion cumulatively to multilateral adaptation funds. The largest sources of approved funding for adaptation projects are currently the Pilot Program for Climate Resilience (PPCR) of the World Bank’s Climate Investment Funds and the Least Developed Countries Fund (LDCF) administered by the Global Environmental Facility. Developed countries’ contributions to these funds remain low compared to those to mitigation; at a global level, adaptation remains underfunded. Directing adaptation funding to countries most vulnerable to the impacts of climate change as well as to the most vulnerable people and population groups within recipient countries remains an imperative with grant financing continuing to play a major role. The operationalisation of the Green Climate Fund (GCF), which is set to devote 50% of its funding to adaptation, with half of that going to the SIDS, LDCs and African states (see CFF 11), would constitute a much needed global corrective in terms of funding for adaptation.