As I write this editorial, the 30th meeting of the Conference of the Parties (COP) to the UN Framework Convention on Climate Change – aka COP-30 – is taking place in Brazil. It is fair to say that the attempt to try to restrict a large greenhouse gas-driven temperature rise across the planet has become one of the defining issues of our age, and particularly for an energy-intensive industry such as our own, responsible as it is for up to 2% of global carbon and carbon equivalent emissions. The move towards lower carbon intensity production of hydrogen, ammonia and methanol, via carbon dioxide capture and sequestration, gasification of biomass or waste, or electrolysis of water using renewable power, has come to dominate our news coverage, and in this issue we also carry articles on the state of play of both ‘blue’ and ‘green’ ammonia production, as well as technology for ‘cracking’ ammonia back to hydrogen and nitrogen for its potential use as a hydrogen carrier.
