Rachel Lupien
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Behind the Podcast ‘How We Got Here’
Scientists Stephanie Spera and Rachel Lupien demystify how different professionals are addressing the climate crisis, one career path and podcast episode at a time.
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How a Turbulent Environment Sparked a Leap in Early Human Behavior
A new study suggests that a series of environmental changes in East Africa some 320,000 years ago challenged a previous long-standing way of life for proto-humans, and produced a more adaptable culture.

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
