By showing that food alone drives five of the six breached planetary boundaries and about 30% of greenhouse-gas emissions worldwide, the new ‘EAT-Lancet Commission on healthy, sustainable, and just food systems’ report shows how food systems are at the centre of the overlapping climate, biodiversity, water, and pollution crises . Foods from animals account for most agricultural emissions whereas the grains dominate nitrogen, phosphorus, and water use. Only combined action, including cuts to food loss, enhanced and durable productivity gains, and dietary changes, can reverse these trends. The prediction on biogeochemical flows is stark: current agriculture leaves a global nitrogen surplus more than twice in excess of the safe limit. Efficiency gains left uncorrected by good policy can a

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