Nitrogen (N) fertilizer supports global agriculture but its use and overuse drive emissions of nitrous oxide (N₂O), a potent and long-lived trace gas. In a study led by the Center for Advanced Bioenergy and Bioproducts Innovation (CABBI), researchers identified major scientific uncertainties underlying the understanding of N₂O flux drivers. To reduce these uncertainties, they proposed the concept of N₂Onet, a global collaborative initiative to accelerate advances in N₂O measurement, analysis, and mitigation.