Princeton Engineering alumna Lisa Jackson will be speaking on the Princeton campus April 28 about the “State of Environmental Protection in the Nation and the Challenges of the Future.” The talk, which begins at 5 p.m. in the Friend Center auditorium, is free and open to the public.

This month Jackson, head of the Environmental Protection Agency, was named to “Time‘s 100,” the magazine’s annual list of the most influential people in the world.

“As the U.S. grapples with serious energy issues, we need serious leaders like Lisa,” writes Steven Chu, secretary of the department of energy, in a citation published by Time. “She understands not only the risks we face but also the opportunities to create a new generation of jobs and to grow the economy while protecting public health and the environment.”

As a graduate student in chemical engineering at Princeton, Jackson researched groundwater contamination, work that led her to focus her engineering skills on addressing pollution. Jackson earned her master’s degree from Princeton in 1986. Jackson will also speak this week at She Roars, a conference celebrating women at Princeton.