As President and CEO of the Population Reference Bureau, I lead efforts to connect data, dialogue, and decision-making worldwide. My work focuses on strengthening public understanding of how demographic change intersects with politics and identity. In my latest book, Toxic Demography (Oxford University Press, November 2025), my co-authors and I reveal how fertility, mortality, and migration have been used—and misused—to advance ideological agendas, shaping debates from pandemic recovery to global fertility decline.