The Network

  • Alumni work in near equal numbers in government, business, and civil society.
  • Their positions involve all aspects of sustainability, including climate, energy, and technology.
  • An alumni directory helps students and alumni network and learn from one another.

ESP Alumni Ambassador Program 

Our alumni ambassadors are eager to speak with prospective students about their experiences in the program and their sustainability careers after graduation. Please contact Kristie DiBenedetto if you would like to arrange to speak with any of the alumni ambassadors.

Beijing, China:
Sheng Yan Commercial Analyst Conoco Phillips
Brussels, Belgium:
Carlos Calvo Ambel Manager, Analysis and Climate Transport and Environment
The Hague, Netherlands:
Thomas Legge Director of External Relations European Climate Foundation
Jacksonville, Florida: 
April Nudo Patterson Senior Planner and Senior Project Manager U.S. Army Corps of Engineers
Madrid, Spain:
Macarena Barragan Regulatory Affairs & Communications Manager Japan Tobacco International (JTI) for Iberia Markets
Mexico City, Mexico:
Gabriela Alarcon Director of the Urban Competitiveness Program Mexican Institute for Competitiveness
New York, New York:
Gabe Cowles Program Manager, Build Smart NY Build Smart NY, New York Power Authority
Emmanuelle Humblet Environmental, Policy & Social Initiatives Apple
Ottawa, Canada:
Sami Qadan Project Manager, Infrastructural Services Parks and Buildings, City of Ottawa
Portland, Oregon:
Fletcher Beaudoin Assistant Director Portland State University’s Institute for Sustainable Solutions
Rio Rancho, New Mexico: 
Katherine Wurden Higgins Environmental Professional Los Alamos National Laboratory
Sacramento, California:
Maria Sotero Advisor to Commissioner Martha Guzman Aceves California Public Utilities Commission
San Francisco, California:
Betty Cremmins Senior Manager, CDP Supply Chain Carbon Disclosure Project
Santiago, Chile:
Gabriel Prudencio Operations Manager Valhalla
Washington DC:
Joseph Daniel Senior Energy Analyst Union of Concerned Scientists
Karin Kaechele Carbon Finance Specialist The World Bank Group
Daniel Teitelbaum Data Management Team Leader Division of Enforcement and Compliance Assistance