At the 2009 United Nations Framework Convention on climate Change (UNFCCC), developed countries committed to mobilising US$100 billion each year for climate action in developing countries by 2020. As negotiations on a new climate agreement intensified in the lead-up to COP21 in 2015, an understanding of the progress made towards this commitment was important in keeping everyone around the table. In this context, the OECD estimated that US$62 billion had been mobilised in 2014, up by US$10 billion since 2013. Updated estimates towards the US$100 billion commitment will be needed in the run-up to 2020, along with new information about climate finance beyond this goal. But further progress relies on robust and transparent tracking of the different streams of climate finance.
