Office of Climate Change, Sustainability and
Resiliency Staff and Interns

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Joshua w. Stanbro
executive director and chief resilience officer

Josh Stanbro is Honolulu’s Chief Resilience Officer, and also serves as the Executive Director of the Office of Climate Change, Sustainability and Resiliency. Josh has a deep background in sustainability and brings a track record of developing cross-sector partnerships to his role in Mayor Caldwell’s administration. He served as Environment and Sustainability Program Director for the Hawai‘i Community Foundation from 2009-2017, where he led the Hawai‘i Fresh Water Initiative and the Hawaiʻi Environmental Funders Group. Previous to HCF, Josh headed The Trust for Public Land’s Hawaiʻi Office, where he worked with local communities to permanently protect over 25,000 acres and dedicate over $200 million in land conservation funds. Josh graduated from Claremont McKenna College and earned a law degree from Berkeley Law. He also visited the William S. Richardson School of Law at the University of Hawai‘i at Mānoa where he earned the Cali Award in Native Hawaiian Rights. He and his family live in Pālolo Valley.

Phone: 808.768.2277


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justin gruenstein
deputy director and deputy chief resilience officer

Justin Gruenstein was appointed Deputy Director on July 1, 2017. In this capacity, he also serves as the city’s Deputy Chief Resilience Officer. Previously, he was the Executive Assistant to Mayor Kirk Caldwell responsible for policy matters relating to the environment, sustainability, and emergency management. He also served as the emergency coordinator for the Office of the Mayor and Managing Director, acting as the Mayor’s liaison to various emergency management agencies. Before joining the City and County of Honolulu, Justin spent five years in government relations with the County of Maui Mayor’s Office and an international civil engineering firm. Early in his career, he was a legislative assistant and policy analyst at the Washington State Legislature, where he served on the staff of both the chair of the Senate Environment, Energy & Water Committee and House Speaker Pro Tem. A native of the Pacific Northwest, he is an alumnus of the University of Washington in Seattle.

Phone: 808.768.6603


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Matthew j. Gonser, AICP, CFM
coastal and water program manager

Matthew Gonser joined the City and County of Honolulu’s Office of Climate Change, Sustainability and Resiliency in October 2017. His position focuses on coastal and water issues generally, with attention to community planning and design, natural hazards mitigation, sea level rise and climate change adaptation, and green infrastructure and stormwater management. Matthew also manages the Office’s development of a Resilience Strategy through the City’s award from the Rockefeller Foundation’s 100 Resilient Cities Program. Matthew previously served as the Community Planning and Design Extension Agent with the University of Hawai‘i Sea Grant College Program. He holds one of two Directors-at-Large positions with the Hawai‘i Chapter of the American Planning Association, is a member of the American Institute of Certified Planners (AICP), and is a Certified Floodplain Manager (CFM), as administered by the Association of State Floodplain Managers (ASFPM). Matthew has also served as the Vice Chair of the McCully-Mō‘ili‘ili Neighborhood Board and is currently the Treasurer. He also serves as an advisory council member for the state Department of Land and Natural Resources Kaulunani Urban and Community Forestry Program. Matthew earned a BS in Natural Resources Ecology and Management from Cornell University, and holds masters in both Regional Planning and Landscape Architecture, respectively, also from Cornell.

Phone: 808.768.2276


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Energy Program Manager

As Energy Program Manager, Rocky utilizes his experience in energy, economics, and financial analysis to help the city plan, organize, and implement its energy programs and priorities. This includes the City’s commitment to stay in the Paris Agreement and reduce greenhouse gas emissions through energy efficiency, grid modernization, and renewable energy use in electric generation and transportation. Prior to joining the Office, Rocky was an economist and energy analyst for the Hawai‘i Public Utilities Commission and State Energy Office, and was a partner in a solar equipment wholesaling business. Before moving to Hawai‘i, Rocky worked as an equity analyst and portfolio manager for AIG Investments in New York, where he researched and managed portfolio investments in global equities. In addition to his primary investment responsibilities, he also sat on the firm’s sustainability steering committee where he helped develop its process for assessing environmental, social, and governance risk.

Rocky earned his Master’s in Economics and International Relations with a specialization in Emerging Markets Finance from the Johns Hopkins School of Advanced International Studies (SAIS). He earned his B.A. in History from Yale University.

Phone: 808.768.2279


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Ketty loeb, Ph.D.
Grants and Research Manager

Ketty joined the Office of Climate Change, Sustainability, and Resiliency to build out its grants portfolio, and also manages monitoring, learning & evaluation, data tracking, and workflow across the Office. With a Ph.D. in Political Science and more than a decade of experience working in the non-profit sector, she brings both academic and practice-based expertise on civil society capacity building, organizational development, project management, public policy, environmental politics, and comparative politics. 

Previously, Ketty worked as a lecturer in Political Science and Public Policy at University of Washington; as a grants manager at Honolulu’s East-West Center and at Sightline Institute, a Cascadia-focused sustainability think tank; and as a program evaluator for the American Bar Association’s Rule of Law Initiative. She has also worked on the foundational teams of several start-up non-profit organizations and served on the executive board of the Washington State China Relations Council. She has lived, researched and worked overseas, in China and Japan. She earned her M.A. and Ph.D. from University of Washington, and a B.A. in Asian Studies from University of Puget Sound. 

Phone: 808.768.2278


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Anna Manuel
Partnerships and Outreach Manager

Anna serves as the Partnerships and Outreach Manager for the Office of Climate Change, Sustainability and Resiliency. She has an extensive background in art direction for marketing and communications, having worked for HMSA, and Ostrander & Chu in Honolulu; and Martha Stewart Living Omnimedia, and the Cooper-Hewitt National Design Museum in New York. She earned her B.A. in Graphic Communication from American University, and holds an MBA with a focus in sustainability from the University of Portland.

Phone: 808.768.2280


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Uyen Vong
office manager and outreach specialist

Uyen Vong joined the Office of Climate Change, Sustainability and Resiliency in August 2017. Previously, she served as the community relations specialist at the Neighborhood Commission Office, overseeing over 400 volunteer board members. Prior to joining the City and County of Honolulu in 2014, Uyen worked at the Hawai‘i State Legislature as a legislative aide and committee clerk. 

Phone: 808.768.4947


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Kristen Martin
Po‘okela fellows program Intern

Kristen joined the Office of Climate Change, Sustainability, and Resiliency in January 2018 as a Po‘okela Intern with the City and County of Honolulu. She is currently in her final undergraduate semester at Hawai‘i Pacific University studying Environmental Studies, where she has focused on disaster and emergency management. Kristen also currently volunteers with the American Red Cross Hawai‘i State Chapter as a Pillowcase Project Presenter, presenting disaster preparedness to elementary schools across the island of O‘ahu.

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Mariah Dailey
hawai‘i pacific university Intern

Mariah is a passionate advocate for sustainability strategies in organizations large and small. She is a dynamic and collaborative leader, pursues innovative solutions to complex problems. Our new global reality requires organizations to pursue reduced costs while addressing sustainability pressures from consumers and regulators. Mariah has successfully guided businesses toward long-term profitability while simultaneously preserving resources, inevitably improving the organization's positive impact on society.

Mariah is pursuing a masters of Global Leadership in Sustainable Development from Hawai‘i Pacific University. Her education exemplifies the depth of her intellectual creativity and international expertise. Receiving a certification in Hospitality Management from Cornell University, and bachelor degrees in Philosophy and Political Science from Trinity College Dublin, Ireland. Her academic expertise is buttressed by her 15 years of experience in the service industry, from hotel GM to restaurant sustainability coordinator. An avid health and wellness practitioner, Mariah holds certifications in Power Yoga, Hawai‘i and Level II Reiki, Hong Kong. She volunteers her time teaching yoga to hotel guests in Waikiki.

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Elizabeth Dionne
university of hawai‘i at manoa Intern

Elizabeth is a graduate student at the University of Hawai‘i Mānoa. She holds as B.S in Environmental Science and is currently working on her M.S in Geoscience with a focus on hydrogeology and aquatic pollution. 

Former experience with planning and policy involved air and ground task force planning in support of Department of Defense operations. For the Office of Climate Change, Sustainability and Resiliency, she is currently working on storm water runoff issues in the Ala Wai Canal, and green infrastructure development for Waipahu transit center.

In the future, Elizabeth plans to use her background in science and planning to support emerging ideas and to advance environmental quality and water security.

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Rachel james
policy Intern

Rachel is a third year law student at the William S. Richardson School of Law. During her time at Richardson, Rachel has served as Vice Chair in the Student Bar Association Senate, a Regional Director of Membership and Development and currently serves as a Class Coordinator for a student organization focused on civic education for the community. She is an Energy Justice Program Fellow and is pursuing a concentration in Environmental Law and Energy Law.

Rachel is currently employed full-time as Project Manager at the Hawai‘i Center for Advanced Transportation Technologies. For two years, she served as the Senior Regional Representative in a Hawai‘i Congressional district office and is a current member of the Governor’s Community Based Economic Development Advisory Council. Rachel is an alumna of the Asia Pacific Center for Security Studies and holds a Masters in Global Leadership and Sustainable Development from Hawai‘i Pacific University and a B.S. in Accounting from the University of Phoenix.