Jeffrey D. Sachs
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Beyond Net-Zero Targets: Lisa Sachs on Designing Systems for Decarbonization
Sachs, director of Columbia’s Center on Sustainable Investment, argues that durable climate progress begins with systems diagnosis, not isolated technologies, targets or promises.
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How Do We Make COP32 Deliver on Climate Goals?
As COP31 and COP32 approach, a Climate Week panel brought together climate leaders to discuss how the world can turn Paris promises into action.
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A Whole-Systems Investment Approach for the Coffee Sector and Beyond
A new handbook showcases a methodology for collaborative investment planning.
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Climate Finance Student Chimi Dorji Hopes to Represent the Global South on the World Stage
A recipient of the Stanley Park Climate Finance Scholarship, Chimi Dorji has spent the last seven years working on climate action, environmental conservation and community development in Bhutan.
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Amid War and Disease, World Happiness Report Shows Bright Spot
The pandemic brought not only pain and suffering but also an increase in social support and benevolence.
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6 Ways America Can Get Back on Track with the UN Sustainable Development Goals
And why our lives depend on it; an excerpt from professor Jeffrey Sachs’ new book, A New Foreign Policy.
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Sustainable Macroeconomics Class Seeks Teaching Assistant
Taught by Jeffrey Sachs, the Massive Open Online Course will focus on the new directions of macroeconomic analysis required to integrate sustainable development challenges.
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Ruth DeFries, Jeffrey Sachs Named University Professors
Ruth DeFries and Jeffrey Sachs have been named University Professors, the highest rank Columbia University bestows on its faculty.
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Leave No One Behind: The Sustainable Development Goals
At the end of September, all 193 member countries of the United Nations have agreed to adopt the Sustainable Development Goals towards eradicating poverty, protecting the planet and advancing prosperity by 2030. What do they hope to accomplish and why do they matter?
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
