Sidney Hemming, professor and chair of Earth and Environmental Sciences at Lamont-Doherty Earth Observatory at Columbia University, continues the NAS Seminar series on Friday, Sept. 28, 2018. The seminar reception is at 3 p.m. in Environmental Sciences (ES) 317, Green Bay Campus. The seminar follows at 3:30 p.m. in ES 301. The topic will be “Toward a 5-Million-Year Record of the Greater Agulhas Current System.” The seminars are free and open to the public. See the full seminar schedule.