UN CC:Learn – The One UN Climate Change Learning Partnership UN CC:Learn is a partnership of 36 multilateral organizations which supports Member States in designing and implementing results-oriented and sustainable learning to address climate change. The Secretariat for UN CC:Learn is provided by the UN Institute for Training and Research (UNITAR). UN CC:Learn supports countries in developing National Strategies to strengthen human resources and skills to climate resilient development and promotes learning materials including massive open online courses on climate change.