Staff Directory

Our Team

Describe your team here.

  • Ms. Prata is the Assistant Vice President in the Office of Environmental Stewardship at Columbia University in New York City. She leads a University-wide initiative that brings together staff, students and faculty to set and achieve goals towards a more Sustainable Columbia. In collaboration with leadership in both University Facilities and Operations and The Climate School, Ms. Prata designed a governance model to centralize this important work through the Senior Sustainability Advisory Committee and a number of focus teams. Ms. Prata led the creation of the university's first ever sustainability plan in 2017. To position Columbia as a climate leader she ensured the second plan, Plan 2030, set science based targets vetted by University climate scientists and the UNEP to put the University on a path to achieve net zero emissions by 2050 or sooner.  Ms.Prata has served as the Co-Chair of the Ivy Plus Sustainability Consortium, and as an Advisory Board member for the International Sustainable Campus Network (ISCN).

    Prior to her current role, Ms. Prata served as the first named Corporate Sustainability Officer at NewYork-Presbyterian (NYP), of the top ten hospitals in the nation by US News & World Report where she launched an expansive sustainability program that functioned at both the grassroots and executive level and sparked an organizational shift towards sustainable practices and policy. Under her leadership, NYP received myriad environmental excellence awards from Practice Greenhealth between 2009 and 2013, as well as Energy Star awards from the Environmental Protection Agency. Previously, Ms. Prata helped manage the environment of care regulatory efforts at NYP after serving as a senior fundraiser for Weill Cornell Medical Center. Before transitioning to healthcare, Ms. Prata held positions specializing in corporate broadcast communications.

    Ms. Prata received a Bachelor of Arts degree at Colgate University, and a Masters of Public Administration degree at Columbia University’s School of International and Public Affairs (SIPA).

  • Janice Erskine has been a Columbia University employee for 23 years. In her present position as Office Manager in Environmental Stewardship, she manages accounts, oversees contracts and change orders, assists with communications among department members and scans electronic and print media for their latest sustainability reports. She also oversees the calendar and travel expenses for the deparment.

    She started at Columbia in a medical billing office at Harlem Hospital, then was promoted to Practice Plan Coordinator in the Psychiatry Department of Harlem Hospital. From there Erskine became executive assistant to the assistant director of psychiatry. She moved to her position at Environmental Stewardship about a year ago from Billing Supervisor at Harlem Hospital when that department was outsourced.

    Erskine's commitment to her work at Columbia is reflected in a daily 188-mile round trip commute from her home in Tannersville, Pa.

  • Helen Bielak is Environmental Stewardship's Operations Manager. One of Bielak's current projects is working with Institution Recycling Network, a cooperative that works largely with educational and health care institutions, helping them manage their recycling and reuse efforts.

    As manager of the surplus Reuse Program, Bielak acts as a matchmaker of sorts, learning about items available for reuse and finding channels for linking them with recipients on campus, in the Morningside neighborhood and in other parts of the world. The Surplus Reuse Program is a centralized resource in Columbia's growing effort to keep as much material as possible out of landfills.

    Bielak's career in facilities management – both in private industry and at Columbia University – has been its own course in sustainability. Over the years she's integrated countless principles and practices, applying them in her current position.

    Bielak came to Columbia in 1999, as Building Operations Manager for the University Residence Halls department. Her pioneering work with the University's "greening" began shortly thereafter, with the renovation of the East Campus townhouses.

    Over the years, training has been a significant part of her work. Most recently she has been introducing new employees to environmental stewardship efforts at Columbia as a presenter in Human Resources' Learning and Development orientation program. This fall she has done similar programs for the Medical, Dental and Public Health Schools on the Columbia University Medical School campus, and for Arts and Sciences, Student Services, SEAS, Columbia College, International Studies, Columbia Business and Law Schools, and the RA Training Program - all on the Morningside campus.

    Bielak and Catherine Resler, Recycling and Greenhouse Gas Reduction Programs Manager, have also been working on environmental audits with personnel at Columbia University Press, Studebaker, and CUMC residence halls.

    Under Facilities' auspices, Bielak worked on the organization of Dumpster Days, in which faculty and staff was encouraged to clean their work places, with emphasis on recycling. In recent years, Dumpster Days have evolved into Give & Go Green, a collaborative effort among Eco-Reps, Housing & Dining, and Facilities, with huge amounts of donations going to local agencies rather than into landfills.

  • Daniel Allalemdjian is the Director of Transportation Demand Management at Columbia University. His role is to establish and promote commuter initiatives that allow Columbia University staff, faculty and students to switch to alternative travel modes that are efficient, convenient, fast and affordable. All with the aim of reducing traffic congestion and environmental impact. Whether it’s making way for bicycle infrastructure, developing new shuttle routes, coordinating rideshare arrangements or advising on transit routes, Dan’s continually looking to improve Columbia’s commute.

    Before joining Columbia University, Dan worked for the Massachusetts Department of Transportation developing and implementing commuter initiatives at worksites across Massachusetts. He worked with a range of Massachusetts organizations that received awards for their commuter initiatives.

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