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This assessment report aims to give a concise and accessible picture of the current availability of alternatives to high-global warming potential (GWP) hydrofluorocarbons (HFCs) in their main uses with the elaboration of their efficiency, cost-effectiveness, safety, environmental impacts, and technical performance, as well as their applicability at high ambient temperatures, with the goal of better informing decision-makers about the future of HFCs in a fast-evolving market and regulatory context.

This research paper draws on the discussions at a workshop held at Chatham House in April 2014, outlines the main issues around the question of how best to craft a fair and effective global response to the growth in HFC use. A number of key issues are central to the debate: the principle of equity between developed and developing countries; the availability of alternatives to HFCs; the need for financial support for developing countries; the legal relationship between the climate and ozone regimes; and, underlying all these, the need for political will to resolve these challenges.