This report, published by Centre d'Économie Industrielle (CERNA) and the Organisation for Economic Co-operation and Development (OECD), examines the distribution of climate mitigation inventions since 1973 and their international transfer.

Based on an analysis of patent data, the authors find that innovations are mostly made — and exchanged between — developed countries, although China and South Korea are found among the top ten inventors. Only 18 per cent of climate mitigation technology exports come from emerging economies, but this proportion is growing rapidly and offers huge potential for North–South and South–South exchanges.

Technologies considered in the report include wind, solar, geothermal and biomass energy, energy conservation in buildings, motor vehicle fuel injection, and carbon capture and storage.

The authors use graphs and tables to present their results. Their findings suggest that the Kyoto protocol has induced innovation but has had no effect on technology transfer.