The OECD's report delves into the essence of green innovation, emphasizing the need for new or improved products and processes that lower greenhouse gas emissions and preserve limited natural resources. Green tech innovations, including green hydrogen and steel, are key players in decarbonizing heavy industry sectors like energy and transport. Despite the high costs associated with green innovation, public support is essential due to deterred private investment. The report highlights the necessity of major changes in the innovation ecosystem to facilitate the transition to green technologies. Green hydrogen, produced through water electrolysis powered by renewable sources, serves as a cleaner alternative to grey hydrogen in various industrial processes. Similarly, green steel production aims to reduce or eliminate carbon emissions traditionally associated with steelmaking. Leading the green innovation race are key ecosystems in Japan, the United States, Korea, and the European Union, with China at the forefront of green hydrogen and battery production. The OECD stresses the importance of not only technological innovation but also solutions optimizing production chains and promoting cleaner techniques. By expanding micro-mobility options, enhancing recycling methods, and strengthening supply chain resilience, green innovations can have a broader environmental impact. The report also raises critical questions for investors and policymakers, urging a balance between incremental improvements and breakthrough investments to address the current climate challenge effectively.