The global food system is addicted to chemical fertilisers. For the past 50 years, these fertilisers have been heavily promoted by global institutions, governments and agribusiness as the means for increasing crop yields, while other options for increasing soil fertility and food production have been ignored or undervalued. The era of cheap fertilisers is over, and the costs have become too much to bear — both in terms of the financial burden for farmers and public budgets, the severe environmental and health impacts, and the long-term risks to food security.