Occupation: Deputy Secretary of the U.S. Department of Agriculture
Previous TIME 100 Appearances: 0
Merrigan brings an unusually green viewpoint to the USDA, better known as a bastion of mainstream industrial farming. The former director of the agriculture, food and environment program at Tufts University, as a congressional staffer in 1990 she helped write the Organic Food Production Act. She remains a champion of sustainable farming.