Tom Harford, dean of students at the School of General Studies, has been removed from his position for what administrators have deemed “unacceptable” conduct, GS Dean Lisa Rosen-Metsch announced in an email to students Tuesday afternoon.

After 12 years as executive vice president for communications, David Stone will be stepping down from his role at the end of September, University President Lee Bollinger announced in an email to faculty this afternoon.

College of Physicians and Surgeons Dean of Admissions Stephen Nicholas abruptly resigned Friday over a dispute with Dean of the Faculty of Medicine Lee Goldman regarding “unwarranted and unjust” decisions about the college’s admissions committee, according to an email he sent to medical students earlier this afternoon.

The graduate student union has announced that it will not file an unfair labor practice charge with the National Labor Relations Board, choosing instead to pursue “relentless disruption”as a means of escalating pressure on Columbia given the University’s continued refusal to bargain.

Earth and Environmental Sciences Professor Maya Tolstoy, who also served as chair of the Policy Planning Committee during the 2017-18 academic year, has been appointed as the interim executive vice president of Arts and Sciences, University President Lee Bollinger announced earlier this month.

As part of the University’s ongoing efforts to minimize its environmental impact, Columbia Dining will stop using plastic straws and will fully transition to compostable paper straws beginning fall 2018.

Undergraduates at Columbia College, the School of Engineering and Applied Science, and the School of General Studies will be charged $56,608 in tuition in the 2018-2019 academic year, according to an email sent to students Friday morning by Associate Vice President of Student Financial Services Jane Hojan-Clark.

The first cohort of Obama Foundation Scholars to be hosted by Columbia will arrive this fall to participate in a year-long program to promote civic engagement and improve public policy, the University announced Thursday.