Graduates join a network over 900 alumni, who hold leading sustainability positions around the world.

  • 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.


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

Boulder, CO:

Maria Chavez     

Senior Consultant/Research Analyst


Brussels, Belgium:

Carlos Calvo Ambel

Senior Director, Non-Road Policy and Analysis.

Transport and Environment

Berlin and Brussels:

Thomas Legge

Director, Land Use  

European Climate Foundation

Houston, TX

Erica Glenn         

Policy Associate

Advanced Energy Economy   

Jacksonville, Florida: 

April Nudo Patterson

Senior Planner and Senior Project Manager

U.S. Army Corps of Engineers

Lima, Peru:

Maria Gracia Aguilar

City Advisor

C40 Cities

New York, New York:

Gabe Cowles

VP of Finance and Business Development

Urban Electric Power

Emmanuelle Humblet

Environmental, Policy & Social Initiatives


Molly Dunton

Project Developer

Liberty Renewables

Portland, Oregon:

Fletcher Beaudoin


Portland State University’s Institute for Sustainable Solutions

San Diego, California:

Katie Altobello-Czescik
Environmental Specialist
Planning & Environmental Affairs Department
San Diego County Regional Airport Authority

San Francisco, California:

Betty Cremmins
Lead (Trillion Trees Platform) North America    
World Economic Forum   

Julia Koppman Norton   
Coastal Planner

California Coastal Commission   

Santiago, Chile:

Gabriel Prudencio 
Head of Renewable Energy Division
Ministerio de Energía Chile 

Washington DC:

Anne Canavati
Senior Analyst
Energy Futures Initiative

Daniel Teitelbaum    

Data Team Leader

US Environmental Protection Agency  


Joseph Daniel
Manager of Electricity Markets
Union of Concerned Scientists

Leonardo Pradela

Senior Program Specialist, ESG Integration

Wells Fargo