Environmental protection is not a goal to achieve but a task to be undertaken by one generation and handed to the next, Gina McCarthy, the former EPA administrator and current director of Harvard’s Center for Climate, Health, and the Global Environment, told the Gazette in an Earth Day interview.

A panel of experts at the Harvard T.H. Chan School of Public Health discussed how the globe might feed an estimated human population of 10 billion by midcentury and suggested a diet high in plant foods, low in red meat, as well as a host of reforms to how food is produced and distributed today.