The global steel industry is transforming from using iron ore to recycling scrap. Global arisings of steel scrap are likely to treble in the next thirty years and we will never need more blast furnaces than we have today. The extent and speed of this global transformation depends on two competing forces: on the one hand, today’s recycling technology cannot currently produce the highest qualities of high-volume steel econonically; on the other, recycling has the critical advantage that it reduces the greenhouse gas emissions released in producing steel to around a third of those from primary production. As the steel industry turns from ore to scrap and action on climate change accelerates, what opportunities does this create for steel in the UK?