The announcement, made at the Seventh MI ministerial meeting in Pittsburgh, will drive public-private investment in technologies which need to be commercialised by 2030, including at least 50 large-scale demonstration projects to decarbonise energy-intensive industries like steel, cement and chemicals; five projects on five continents to demonstrate the integration of up to 80 per cent renewable energy into energy grids; and the identification of 100 'hydrogen valleys' worldwide.The