Nitrous oxide emissions are higher than previously thought, and going up faster The explosion that rocked Beirut last month, killing at least 190, was a grim echo of previous accidents caused by the explosive synthetic fertiliser, ammonium nitrate. Tianjin, China, 2015: 173 dead. West, Texas, 2013: 15 dead. Toulouse, France, 2001: 31 dead. Such incidents […]