in and climaterelated aid commitments reported to the oecd dac ranged on average from usd bn per year based on lower and upper bound estimates representing up to of total oda going forward climaterelated oda is expected to remain both significant and substantial given its potential to mobilise other sources of climate finance and given the internationallyagreed target of devoting gni to oda going forward the definition of public climate finance and consistency with oecd dac rio markers is to be determined