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Meet the Team
The OneEarth Living team is a group of sustainability experts, practitioners and advocates from around the world. With decades of experience across research, policy, and practice, we bring credibility, courage and genuine warmth to everything we do. We love working with partners near and far to turn bold ideas into real-world change.
Dr. Vanessa Timmer
Executive Director
Co-founder
Award-winning global expert advancing sustainable living, systems change, and social innovation, shaping international agendas and accelerating sustainable lifestyles through Big Life Changes initiatives.
Dagmar Timmer
Managing Director,
Strategic Initiatives
Co-founder
Sustainability leader advancing systems change through partnerships, Motivations research, and practical sustainable living initiatives and guidance, with a political science and global conservation background.
Erica Priggen Wright
Director of
Narrative Strategy
Globally recognized narrative strategist and executive producer behind The Story of Stuff, Autodesk Sustainability Workshop, and Alliance for Climate Education campaigns reaching millions worldwide.
Lisa Mastny
Director of Editorial Strategy
Communications strategist, editor, and researcher who spent nearly two decades at the influential Worldwatch Institute, led communications at New Dream, and supports international agencies with publications.
Cora Hallsworth
Senior Associate | Cities Sustainability Strategist
Sustainability strategist and urban planner with 20+ years advancing community sustainability, recognized by BIV500 for contributions to urban planning, climate action, and sustainable consumption.
Edna Catumbela
Project Manager
| Communications & Information Design
Information and communications designer with 7+ years creating visuals, web experiences, and presentations that turn sustainability research into accessible public engagement.
Majid Khoury, CAIP
Motivations | Advertising and Brand Strategist
Market research expert with 30+ years’ experience across sectors, previously Senior Vice President, Western Region at Ipsos ASI, specializing in advertising and brand research.
Alka Tandan, CAIP
Motivations | Research & Service Design Strategist
Research and service design strategist with 20+ years advising Fortune 100 companies and startups, translating insights into inclusive, human-centered experiences and business strategies.
Keiko Lee Hem
Communications | Graphic Designer
Graphic designer with 17 years of expertise helping changemakers communicate with clarity, simplicity, and impact, inspired by the beauty in the world around her.
Zach Horsman
Website | Web Developer
Web developer focused on building, hosting, and optimizing custom online platforms, with a passion for supporting tech-oriented nonprofits such as Computers for Schools Saskatchewan.
Kate O'Connor
Project Manager
Climate and youth leader, youngest MLA candidate in BC history, and Top 25 Environmentalist Under 25 studying international governance at Sciences Po Paris.
Gilles Giusta
Bookkeeping | Account Management
Accountant and bookkeeper with 30+ years’ experience supporting businesses, charities, and nonprofits, including long-standing financial management for francophone and community-based organizations.
Board of Directors
Esther Speck
Director | Corporate Social Responsibility Expert
Global sustainability and corporate social responsibility leader with senior roles at leading apparel and retail brands lululemon and MEC, advancing systems change and circularity.
Dr. Alastair Moore
Director | Planning & Urban Sustainability
Energy expert, planner, and founder of Canada’s first green building supply store, advancing low-carbon buildings, climate resilience, and one-planet lifestyles through practice and research.
Joji Kumagi
Director | Economic Development
Ecologist, accountant, and Manager of Economic Development for the City of Port Moody, advancing inclusive local economies and community-rooted development.
Dan Burns
Director | Interdisciplinary Programs and Philanthropy
Management professional with a track record in capturing revenues for organizations, with 25+ years developing interdisciplinary post-secondary programs, including Indigenous-led education and sustainability training.
Advisors
Joanna Kerr
Leadership Coach | Strategic Approach
Sought-after leadership coach, strategist and changemaker who has spent decades at the helm of bold, values-driven organizations including MakeWay and Greenpeace Canada.
Harvey McKinnon
Fundraising Coach | Development
Leading North American fundraising expert, bestselling author, trainer, and documentary producer whose work continues to shape nonprofit fundraising, donor engagement, and monthly giving internationally.
Lynda Gerty
Leadership Coach | Non-profit Management
Professional Certified Coach and organizational consultant with leadership experience at the David Suzuki Foundation and Vantage Point, supporting changemakers, teams, and organizations navigating change.
Dr. William E. Rees
Human Ecology Coach | Inventor of Ecological Footprint
Co-creator of the ecological footprint, Blue Planet Prize laureate, human ecologist, and Professor Emeritus shaping global understanding of ecological limits, overshoot, and human carrying capacity.
Interns
Zunaira Kamal
Intern | Sustainable Living
Economics and Environmental Studies student at the University of Toronto with experience in sustainability assessment, economic and policy research, digital strategy, and project coordination.
Arsalan Ayub Khan
Intern | Sustainable Living
Business and Society student at York University with experience in research, communication, content drafting, and organizing information for socially and environmentally relevant work.
Julia Resully
Intern | Sustainable Living
Bachelor of Science student at Western University specializing in Biology and Environmental Science, with experience in research support, communications, and community engagement initiatives.
Ana Perales
Intern | Sustainable Living
Environmental science student in Ottawa committed to visualizing local sustainability, making environmental data accessible and connecting academic research with meaningful community action.
Jerry Choi
Intern | Sustainable Living
Student at York University focused on sustainable urban issues, systems thinking, equitable cities and translating academic knowledge into practical community-based solutions.
Shivansh Aggarwal
Intern | Sustainable Living
Biochemistry student at McMaster University passionate about sustainability, healthcare, and research, with experience in environmental chemistry, healthcare volunteering, outreach and collaborative work.
Our Core Collaborators
Palavi Kalambe in
C40 Cities
Urban Systems Coordinator, Climate Action Planning & Innovation Support - UK
Dwayne Appleby in
Institute for Global Environmental Strategies (IGES)
Deputy Director and Senior Programme Manager, Sustainable Consumption and Production - Japan
Atsuki Watabe in
Institute for Global Environmental Strategies (IGES)
Director for Stakeholder Engagement and Principal Researcher, Sustainable Consumption and Production Group - Japan
Isabelle Moïse in
RECYC-QUÉBEC
Directrice des opérations, Dossiers et développement stratégiques - Canada
Dr. Jiaying Zhao in
University of British Columbia
Professor and Director, Behavioural Sustainability Lab, Department of Psychology - Canada
Jade Radke in
University of British Columbia
PhD Student, Behavioral Sustainability Lab, Department of Psychology - Canada
Glenys Verhulst
District of Saanich
Sustainability Specialist - Canada
Dr. Lorraine Whitmarsh in
University of Bath
Director, Centre for Climate Change & Social Transformations (CAST) - UK
Linda Booth Sweeney in
Toggle Labs & Obama Foundation
Founder, Toggle Labs; Visiting Faculty, Obama Foundation - USA
Founders Circle
Founders of OneEarth Living - World Urban Forum June 2006 - Emmanuel Prinet, Tobi Reyes, Vanessa Timmer, Dagmar Timmer, Bill Rees with Herb Girardet and Keith Jardine
OneEarth Living was launched at the 2006 World Urban Forum in Vancouver, Canada, and officially established as a nonprofit society in 2007.
Its five founders - Dagmar Timmer, Vanessa Timmer, Tobi Reyes, Emmanuel Prinet, and Dr. William E. (Bill) Rees - came together from diverse backgrounds and perspectives to create the organization. Vanessa and Dagmar Timmer continue to lead OneEarth Living. Dr. William E. (Bill) Rees, an award-winning ecological economist, is best known as the inventor of the ‘ecological footprint.’ Tobi Reyes brings his business experience and passion for environmental stewardship. Emmanuel Prinet is an expert in sustainable consumption and production, with extensive experience in international processes including the UN Environment and European Commission.
The founders were inspired to create OneEarth Living as a platform to connect the dots between who we are, what we consume, and how we live, reimagining sustainable consumption and production patterns for a thriving future. Learn more about Our Story.