David Harary

Executive Director

Named by Corporate Knights Magazine as a Top 30 Under 30 Leader in Sustainability, David Harary has a well-earned reputation as an insightful, fearless mediator between science, management, and policy. In the summer of 2016, David worked with the U.S. National Oceanic and Atmospheric Administration (NOAA) to develop strategic business plans that will promote economic growth across the U.S. National Marine Sanctuary System. Prior to this, David cultivated extensive experience building strategic communications plans with NASA Headquarters and worked alongside policymakers on resource security in the U.S. Senate, U.S. House of Representatives, and the Massachusetts House of Representatives.


In both the office and in the environment, David’s ability to develop and communicate solutions for challenges facing today’s society has been sharpened by a diverse portfolio of unique experiences. He has over 3,000 hours of laboratory experience and has worked with several non-profits and multinational corporations on sustainability and natural disaster resilience. In 2014, David founded the award-winning non-profit think tank, Center for Development and Strategy. He is currently completing his MSc in Sustainability Management at the University of Toronto and has a B.A. in Economics and Geography and International Trade from the State University of New York at Buffalo.


An experienced writer, David has contributed opinion pieces for Error of Opinion, Roaring Earth and Think Together,  sharing his understanding of the issues relating to our environment, political landscape and future society.

See David’s curriculum vitae here.



Nate Van Beilen

Director of Strategy

Nate grew up in Oakville, Ontario and was raised in a family with strong values of hard work and responsibility. These values were brought to the University of Waterloo. Nate was in the cooperative program in his undergrad and worked at organizations such as the Ontario Ministry of Finance, eHealth Ontario, TDL Corp, and a tax firm. Nate didn’t particularly enjoy business and economics as it was being taught and decided to switch his focus to political science where he enjoyed the philosophical aspects of competing ideologies. Nate was particularly affected by a few political science courses that highlighted the inequality between industrialized and developing countries and how certain ideologies, assumptions and institutions have led to compounding issues societal and environmental issues. Nate travelled to Singapore for a semester abroad and visited many countries throughout Southeast Asia. These travels highlighted solvable issues and a need for responsible business and accountable governance. After completing his undergrad degree, Nate went to British Columbia where he worked on organic farms and travelled down the west coast. At one farm, he set record for most pounds of blueberries picked in one day. In BC, Nate volunteered in a Native territory where a First Nation is protecting traditional lands from pipeline development. These experiences highlighted that humans can have a positive impact on each other and the biosphere when products and processes are designed intelligently with nature as a model and source of inspiration.


In the summer of 2016, Nate completed an internship at the Works Design Communications as a Sustainability Analyst. In the internship, Nate lead a research project for trends and best practices in sustainability reporting and analyzed over 100 companies. He also contributed to consulting projects by conducting materiality analysis and stakeholder research, and developed reports that aligned with GRI G4 guidelines, United Nations Global Compact, United Nations Sustainable Development Goals, and the OECD guidelines for Multinational Enterprises.


He holds down jobs writing blogs and managing social media for a real estate firm in Oakville, and also writes for the Halton Food Council. In his spare time Nate enjoys playing guitar, vegetable gardening, reading, nature photography and species identification, biking, hiking, and canoeing in back country parks.


Jeremiah Pariag

Sustainability Analyst

Jeremiah is a graduate of the Master’s in Environment and Sustainability program at Western University and is currently working as an Environmental Management Consultant at Hardy Stevenson and Associates Limited in Toronto. Prior to this, he earned a Bachelor of Arts in Political Science — also from Western University — as well a Professional Certificate in Energy Innovation and Emerging Technologies at Stanford University.


Over the last few years, Jeremiah’s multidisciplinary background has enabled him to explore a wide range of career opportunities allowing him to be lucky enough to work for: Microsoft, Credico, KMW Energy, Delta Upsilon, York Region, the University of Western Ontario, and several others.


Jeremiah has a strong educational base thus far; however, he plans to continue his education and my career concurrently. During his time in the Political Science program at Western University, Jeremiah specialized in political opinion writing and global crisis solutions. Toward the end of his undergraduate studies, he found myself underwhelmed by the efforts made by world leaders to solve global environmental issues, which motivated him to enroll in Stanford University’s Professional Certificate in Energy Innovation and Emerging Technologies program and the M.E.S. program at Western University. Going forward, he plans on completing my MBA within the next 3 years.



Sabina Hyseni

Director of Sustainability

Sabina is currently a Junior Professional Consultant Intern with the United Nations Children’s Emergency Fund (UNICEF) and is pursuing her M.S. in Sustainability Management at the University of Toronto. In her current role at UNICEF, she is working in the Private Fundraising and Partnerships department with the Child’s Rights and Business team. She graduated with an HBSc in Chemistry from Wilfrid Laurier Univeristy and is studying in Geneva, Switzerland in the Fall of 2016. Her personal interests led her to a Kung Fu academy in China for two years under Shaolin monks in order to increase her work ethic and personal awareness. It was in China, where she saw people living without basic sanitation, water and food, which led her to pursue a career in sustainability. In Toronto, she is a radio co-host at Green Majority Media. She speaks fluent English and Albanian with working knowledge of French and Italian.


Juan Jimenez

Director of Finance

Juan grew up in Pereira, Colombia before moving to the United States at a young age. He is currently working for Citigroup’s Investment Banking office in Buffalo, NY as a financial analyst with a couple years of experience in the industry. He has worked closely with David Harary, the CDS Executive Director, to bring a financially sustainable business model to the Center for Development and Strategy by bringing in new sources of revenue and setting strict financial goals. What originally attracted Juan to the think tank, is its ability to have an impact on the community. Coming from a small developing country with poor economic roots, Juan is deeply affected by the many inequalities our society has created. He has pledged to do everything possible to give back to the community and CDS has created a unique avenue to do so.


Juan graduated with a Bachelor’s of Science in Business Administration at the State University of New York at Buffalo with concentrations in International Business and Financial Analysis. He served as the Treasurer for UB’s Student Association, where he oversaw a budget of over $3.4 million.

Emile Lavergne

Emile Lavergne

Climate Security Fellow

Emile is interested in climate resilient development and security. He is working towards a career at the intersection of clean and renewable energy, and environmental and social policy, leveraging innovation to facilitate long-term sustainable development. Holding a one-year fellowship with CDS, Emile will be studying the relationship our environment has with national security.


As a current 2nd-year masters candidate at the Munk School of Global Affairs, Emile’s specialized focus on the environment and international relations is bridged through his dual-enrollment with the University of Toronto’s School of Environment. He is fully bilingual (English/French) and has worked in Paris, Ottawa, and New York. He studies in Canada and has lived in Taiwan, France, China, South Korea, Japan, and the United States.


Emile holds a B.A. in Economics and International Development from McGill University in Montréal, Canada.

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Brian Malczyk

Climate Security Fellow

Brian hails from Toronto, and is a graduate of the Peace, Conflict, and Justice Studies program at the University of Toronto (BA 2016). In his third-year, he was an International Presidential Fellow at the Center for the Study of the Presidency and Congress. Succeeding this, he led North American Model United Nations in his capacity as Secretary-General. Brian also served as Co-President of the Canadian Red Cross group.


Brian is an alumnus of St. Michael’s Choir School (2012) and executive member of its alumni association, SMCSAA. He currently teaches piano and sings with several choral groups as a reflection of his background in music.


As a Climate Security Fellow at CDS, his research interest orbits the impact of climate change on state engagement with the Arctic and its people.

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Anthony Fiorenza

Manager of Corporate Partnerships

Anthony was born and raised in Westchester County, outside of New York City. As a native New Yorker, he grew up witnessing the wealth divide and costs of inequality. These first-hand observations taught him the value of resources. He has thus taken an interest in the efficient division of resource allocation. Anthony received a B.A. in Economics from the State University of New York at Buffalo in 2015. There he was influenced and became an avid member of CDS, providing both strategic insights as well as management over the Think Incubation program. He currently works in Manhattan as a Legal Negotiator.