John E. Williams
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Preparing Students for Diversity, Equity and Inclusion in Sustainability
A Q&A with John E. Williams, Columbia Climate School’s sustainability programs director of student affairs and diversity, equity and inclusion.
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Viewing Urban Geography and History Through an Environmental Justice Lens
A Q&A with John Williams, who studies the historical links between the built environment and racial injustice in U.S. cities.
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2022 Climate News You Should Know
Climate School experts weigh in on the past year’s most noteworthy events and developments within their fields.

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
