The Iran war has done in two months what years of climate policy could not: make green hydrogen look economically viable. Soaring oil and gas prices since February’s outbreak of hostilities have narrowed the cost gap between the zero-emission fuel and its fossil rivals, paving the way for wider uptake across Asia. The eight-week US-Israeli war on Iran, Tehran’s closure of the Strait of Hormuz and Iranian strikes on Qatar’s Ras Laffan liquefied natural gas (LNG) complex have sent Asian fuel...