Contact USDN

For more information about the Urban Sustainability Directors Network (USDN) or for questions about how you can join or work with the network, please contact Natalie Narotzky at

USDN Staff:

Nils Moe, USDN Executive Director

Nils Moe currently serves as the Executive Director of the Urban Sustainability Directors Network (USDN). In this role, Nils oversees the day-to-day operations of this rapidly evolving North American network of over 185 member communities representing more than 84 million residents. Nils is an experienced, accomplished change agent with over 15 years of successful strategic business development, organizational leadership, and client building. Previously, he served as the Mayor’s Sustainability Advisor for the City of Berkeley, where he helped to implement Berkeley’s Climate Action Plan and worked with the city staff and the community to reduce their GHG emissions. He also has worked as a professor of Organizational Psychology at San Francisco State University, co–founded two values-driven non–profits, and worked in the private sector as a management consultant, specializing in program evaluation of non-profits and 360–degree feedback for Fortune 100 companies.

Abeer Nawaz, USDN Administrative Assistant

Abeer Nawaz is USDN's Administrative Assistant, joining the team in April 2018. Her previous work experience has been in the recruiting industry, specifically in the energy sector, and in customer-facing roles in the retail banking industry. She attended the University of Houston and currently resides in the Greater Houston area with her family. 

Celía Burke, USDN Programs Coordinator

Celía Burke joined USDN in October 2019. As Programs Coordinator, she plays a crucial role in supporting information exchange among members by assisting with communications and peer learning activities like groups, Annual Meeting content sessions, and website discussions to support peer-to-peer sharing. Prior to USDN, Celía was a Planner I for Peoria County, her first role after receiving a Master of Urban Planning degree from the University of Illinois, Urbana-Champaign. Celía began writing about sustainability and environmental justice while pursuing her B.A. in Political Science at Howard University. Since then, her writing and overall professional experience has grown to include diversity and inclusion in the private sector and various areas within the realm of social equity. Celía resides in Lake County, IL. 

Garrett Fitzgerald, USDN Strategic Collaboration Director

Garrett Fitzgerald supports USDN in strategic planning, organizing collaborative activities, and engaging external partners to help USDN members advance their work. He is based in Washington DC. Garrett previously managed the Sustainable Oakland program from 2008 to 2013 for the City of Oakland, CA, and served as Programs Director for ICLEI USA. He is a board member of STAR Communities and co-chaired development of ICLEI’s Community-Scale Greenhouse Gas Emissions Reporting Protocol. Garrett holds a Master’s degree in Energy and Resources from the University of California, Berkeley, where he studied community sustainability performance management. He also previously served as a consultant to the City of Berkeley's Office of Energy and Sustainability, a renewable energy staff researcher at Lawrence Berkeley National Laboratory, and an energy efficiency programs analyst at ICF Consulting. He is a LEED accredited professional and a past Fellow and Leadership Grant Recipient of the Robert and Patricia Switzer Foundation. 

Johanna Partin, Carbon Neutral Cities Alliance (CNCA) Director

Prior to joining USDN in January 2015, Johanna served as North America Regional Director for the C40 Cities Climate Leadership Group. Prior to that, Johanna served as Senior Policy Advisor on Environment to San Francisco Mayors Gavin Newsom and Ed Lee, where she developed and implemented policy on sustainable energy, climate, transportation, green building, and other programs. She also served on the Board of the Bay Area Air Quality Management District and is a Faculty Member for the Climate Leadership Academy. She has a Master’s degree in Energy & Environmental Policy from the University of Delaware and a Bachelor’s degree in Environmental Studies and Anthropology from UC Santa Barbara.

Jon Crowe, USDN Programs Director, Renewable Energy

Jon Crowe joined USDN in January 2019 and is responsible for supporting renewable energy strategy, partnership, and program development across the USDN network. Prior to joining USDN he was a Principal at the Cadmus Group where he led the firm’s Sustainable Communities and Organizational Strategy Practice, collaborating frequently with USDN members, partners, and funders. Jon earned a master’s degree in Urban and Environmental Policy and Planning from Tufts University in 2010 and previously held energy- and climate-focused positions with the City of Medford, Massachusetts, and ICLEI - Local Governments for Sustainability.

Julia Trezona Peek, USDN Communications Director

Julia Trezona Peek joined USDN in 2019 as the Communications Director. In this role, she helps members use a variety of resources to connect with constituents and stakeholders to inspire action. Previously, she was an Account Director at Fenton where she specialized in running campaigns that integrate press, digital media, advertising, messaging, events and organizing to reach her clients' goals. Julia has largely worked for coalitions, nonprofits and foundations on climate change, energy, land and water issues. Her MSc focused on conflict resolution and environment. She hails from Minneapolis, Minnesota, and has made stops in Washington D.C. and New York City before now calling Seattle home.

Kristin Baja, USDN Programs Director, Climate Resilience

Kristin Baja (‘Baja’) is USDN’s Climate Resilience Officer and is responsible for helping cities identify strategic ways to advance climate resilience planning and implementation and building their capacity to take proactive action. Baja focuses her time on supporting members and partners in working at the nexus of resilience, mitigation and equity while also helping center equity in their climate and sustainability work. She helps facilitate deeper relationships between local governments and stakeholders while helping to identify and shift focus to more collaborative and transformational action. Prior to USDN, Baja served as the Climate and Resilience Planner with the City of Baltimore's Office of Sustainability where she led the city's climate and equity work. She holds a Masters of Urban Planning and a Masters of Science from the University of Michigan. She is also an Aspen Global Change Institute Fellow, is an EPIC-N board member, and serves on several local and international advisory committees. In 2016, she was recognized by the Obama Administration as a Champion of Change for her work on climate and equity.

Mia Luhtanen Arter, USDN Operations Director

Mia Arter is Operations Director for USDN, where she is responsible for implementing and tracking USDN activities to fulfill the network’s strategic plans, including providing program oversight, financial and organizational management, and other operational support, as well as staffing the USDN Peer Learning Exchange and 2016 USDN Building Diversity Fellowship. She has previously directed member information sharing and networking programs for USDN, including helping to build the network's exemplary peer-sharing website. She has also worked for The Chicago Council on Global Affairs, researching immigration, economics, and global agricultural development and supporting a fellowship program of emerging Chicago leaders. She volunteers as Board Secretary of the Luhtanen Howes Charitable Foundation and the Riveredge Outdoor Learning Elementary School and as Board President of the Friends of the W.J. Niederkorn Library. She received a B.A. from Loyola University Chicago in sociology and international studies and lives with her family in Port Washington, Wisconsin.

Michael Battista, CNCA Program Coordinator

Michael Battista is the Program Coordinator for the Carbon Neutral Cities Alliance where he provides support for communications, events, operations, and research. In his previous role as Project Coordinator in the School of Graduate Studies at the Fashion Institute of Technology, he supported the programs of Global Fashion Management and Sustainable Interior Environments, producing media, and managing student and alumni relations, special events, and international seminars. Prior to joining FIT, he was the Executive Assistant and Engagement Manager for All Out, a digital campaign advocacy organization for LGBT equality operating in rapid response to the news cycle, and served in roles for the Offices of Protocol and Climate Protection Initiatives of San Francisco Mayor Gavin Newsom. He has an Associate degree in Communications and Media Arts from the State University of New York at Rockland, and a Bachelor of Arts in Liberal Studies from San Francisco State University.

Michael Shank, CNCA/USDN Communications Director

Michael Shank is the communications director for the Carbon Neutral Cities Alliance and the Urban Sustainability Directors Network. In this role, Michael supports alliance and network members’ efforts to communicate ambitious climate action to the public, the press and other policymakers. As a climate communicator, Michael’s past clients include the United Nations and its member states, the U.S. Congress and Administration, and the Vatican, as well as leaders in the subnational space, such as the B Team, We Mean Business, Under 2 MOU and The Climate Group. Michael’s Ph.D. is in climate conflict; he teaches sustainable development and climate security graduate classes at NYU’s Center for Global Affairs.

Natalie Bridger, USDN Membership Coordinator

Natalie Bridger joined USDN in September 2019. As Membership Coordinator, she supports USDN’s growing membership by onboarding and tracking new communities and participants, providing high-level customer service and communications to participants, and reporting on membership trends. Prior to USDN, Natalie was the Senior Director of Solution Center for Project Lead The Way, where she managed the daily operations of the customer service team and helped to continuously build and improve systems, processes, and the customer experience. She has a Master of Business Operational Excellence from The Ohio State and a Bachelor of Liberal Arts in Communication Studies from Indiana University Purdue University. Natalie resides in Carmel, IN with her family.

Natalie Narotzky, USDN Programs and Communications Manager

Natalie Narotzky has worked with USDN since April 2013 and was promoted to Program and Communications Manager in 2017. She has become an experienced project manager, overseeing and directing internal and external communications modes, member data analysis, and programming, including user groups and network-wide calls. She received an M.S. in Climate Science and Policy from the Bard Center for Environmental Policy and a B.A. in Environmental and Urban Studies from Bard College in 2012. She has worked with Hudsonia Ltd., the Worldwatch Institute, Inform, and KM Networks. Natalie lives Berkshire County MA and volunteers locally on climate action work.

Rachael Schaffner, USDN Research Coordinator

Rachael Schaffner supports USDN’s research agenda by conducting research, maintaining databases, and creating engaging content. Prior to USDN, Rachael dedicated her time to both corporate and local government sustainability efforts including serving as the Sustainability Project Manager for the City of Fayetteville, Arkansas and as the Innovation Coordinator for The Sustainability Consortium. Her passion for local government advocacy began during a Fulbright Fellowship in Erzurum, Turkey where she taught at Atatürk University and researched local, coalition-led economic development projects. She received her M.A. from the University of Arkansas, studying storytelling and rhetorical strategy. After spending time in Houston, St. Louis, and Chicago, Rachael is proud to now call the hills of Northwest Arkansas her home.

Rupal Prasad, USDN Programs Coordinator

Rupal Prasad Joined USDN in May 2018. As Programs Coordinator, she supports information exchange exchange among members by assisting with communications and programming to foster peer-to-peer sharing and collaboration. Prior to USDN, Rupal was the Building Performance Program Associate for City of Philadelphia Office of Sustainability and City Adviser for City Energy Project/ Institute for Market Transformation, where she helped manage Philadelphia’s Energy Benchmarking Program. She received an M.A. in Biology from Villanova University and a Master of Environmental Studies from the University of Pennsylvania. Rupal currently lives in Philadelphia.

Sarah McKinstry-Wu, USDN Programs Director, Equity and Climate Planning

Sarah joined USDN in August 2018. She supports USDN members and partners on issues related to electric vehicles, climate action strategy, urban heat island reduction, and community engagement. Prior to USDN, Sarah served as the Deputy Director of Philadelphia's Office of Sustainability, where she managed Philadelphia’s climate adaptation planning and oversaw the 2016 update of the City’s sustainability plan. Sarah serves on the executive leadership team of the Philadelphia Food Policy Advisory Council, which connects Philadelphians and their local government to create a more just food system. Sarah also helped implement Opportunity NYC, an incentive program working to improve the health, employment, and education of New Yorkers in poverty, and researched national environmental policies at the Environmental Law Institute in Washington, DC. Sarah earned an undergraduate degree from Williams College and a Masters in Urban Planning from New York University.

Tracy Morgenstern, USDN Programs Director, Mobility (CNCA Strategic Initiatives)

Tracy Morgenstern joined USDN in November 2018. She supports USDN members and partners in advancing climate goals in the areas of transportation and planning for a just transition to a clean energy future. Prior to joining USDN, Tracy worked for the City of Seattle's Office of Sustainability and Environment, most recently as Climate Protection Program Manager where she worked increasingly at the nexus of climate mitigation, adaptation, and equity. She has a Bachelor of Philosophy degree in Interdisciplinary Studies.

Trude Rauken, CNCA Deputy Director

Trude Rauken in the director of the strategic initiative for the Carbon Neutral Cities Alliance where she leads the implementation of key Alliance strategies and programs. Prior to joining the CNCA, Trude worked as a senior policy advisor on climate to the City of Oslo, and prior to that she was a senior researcher at CICERO - Center for Climate Research. Trude brings expert knowledge on the role of local government in solving climate issues and the opportunities coming from network collaboration across local government. She holds a Master’s degree in Political Economy from BI Norwegian School of Management and a Bachelor’s degree in Journalism and Communication 

WendyKay Gewiss, USDN Events Manager

WendyKay Gewiss joined USDN as Events Manager in 2019. She will be working with the USDN team, members and host city partners to coordinate annual meetings and training workshops focused on sharing best practices to create equitable, prosperous and healthy communities across North America. Prior to joining the USDN team, she was the National Adaptation Forum Program Coordinator for EcoAdapt and helped develop and facilitate the Forums in 2013, 2015 and 2017. Over seven years she grew participation in the Forum by creating a rich program with diverse content, providing a venue realized for its greatest purpose, and creating a value-added participant experience with an attention to detail benefiting all within the adaptation field. WendyKay's background also includes being the Development Director for the Oregon Natural Desert Association where her passion for the outdoors was well matched with her relationship building and donor management skills. She came from nearly two decades steeped in corporate sales before making the jump to serve the non-profit community. She lives in beautiful Western Wyoming with her husband Eric.