Hans Rosling reframes 10 years of UN data with his spectacular visuals, lighting up an astonishing -- mostly unreported -- piece of front-page-worthy good news: We're winning the war against child mortality. Along the way, he debunks one flawed approach to stats that blots out such vital stories.

The single biggest factor, by far, in reducing the rate of death among children younger than five is greater education for women. In all countries worldwide, whether females increase schooling from 10 years to 11, say, or two years to three, infant mortality declines, according to a recent study by the Institute for Health Metrics and Evaluation at the University of Washington.