“To do really important research in environmental policy,” said Francesca Dominici, “the first thing we need is data.” Dominici, a professor of biostatistics at the Harvard T.H. Chan School of Public Health and co-director of the Harvard Data Science Initiative, recently presented the Henry W. Kendall Memorial Lecture at MIT. She described how, by leveraging massive amounts of data, Dominici and a consortium of her colleagues across the nation are revealing, on a grand scale, the effects air pollution levels have on human health in the United States. Their efforts…