Columbia University's Mailman School of Public Health Feb 13 2026 Recent global crises have exposed the limits of a universal mortality threshold for declaring famine-an approach that can obscure how famine actually unfolds across different populations. In a paper published in the Lancet , researchers at Columbia University Mailman School of Public Health and colleagues call for a fundamental re-examination of how famine thresholds are defined. The mortality thresholds used by the Integrated