desertification
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The Earth Is Getting Drier
Desertification is occurring in many parts of the world, including the western U.S., Brazil, most of Europe, Asia and central Africa. Is it too late to reverse it?
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Climate & Water in a Changing Africa: Uncertainty, Adaptation & the Social Construction of Fragile Environments
A special issue for the journal of the American Academy of Arts and Sciences examines water (in)security in Africa in an age of global climate change.
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You Asked: Can the Great Green Wall Stop the Sahara From Expanding?
A climate scientist answers readers’ questions about an initiative that would plant a vast wall of trees to combat the effects of climate change.
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Monaco Supports Sustainable Development in Mali
NEW YORK, April 11 – The Prince Albert II of Monaco Foundation and the Principality of Monaco have launched a new partnership with the Earth Institute, Columbia University that stands to make important new strides in protecting biodiversity and addressing the urgent needs of the rural poor in Mali. With a $1.5 million grant, this…

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
