Diego Arreola Fernández is a third-year undergraduate student of International Relations, Economics and Environmental Studies at the University of Toronto. He is also a recipient of the Lester B. Pearson Award - a fully-funded merit scholarship.

Since 2019 he has been an environmental activist and educator. In 2020, after winning the Brower Youth Award, he founded Green Speaking, a non-profit organization that empowers young people from developing countries to become climate leaders and global decision-makers. In three years, Green Speaking has reached over 5,000 students across more than 10 countries, through 15 online and in-person events.

Aside from Green Speaking, he has also worked with American-based NGOs, such as Captain Planet Foundation, Lonely Whale and EarthEcho International; multinational companies such as Cisco and GreenBiz; and local and national governments in Mexico, Canada, Korea, Kenya and Thailand; contributing to their sustainability and environmental education programs.

In addition to advocacy and education, Diego is also passionate about climate research. In 2022, he conducted research on Latin America’s illegal logging crisis, and traveled to Seoul to present his findings at the Global Youth Climate Challenges. Earlier this year, he received a Climate Positive Award from the University of Toronto to study the negotiations for the UN Plastics Treaty, and evaluate the involvement of developing countries.