Greta Thunberg, a 16-year-old climate activist from Sweden, sits on a catamaran docked in Hampton, Va., on Tuesday, Nov. 12, 2019. Thunberg will leave North America and begin her return trip across the Atlantic on Wednesday aboard a 48-foot (15-meter) catamaran sailboat whose passengers include an 11-month-old baby. The boat leaves little to no carbon footprint, boasting solar panels and a hydro-generators for power. (AP Photo/Ben Finley)