Global Warming9
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The 100th Meridian, Where the Great Plains Begin, May Be Shifting
Two new papers find that the line that divides the moist East and arid West is edging eastward due to climate change—and the implications for farming and other pursuits could be huge.
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Photo Essay: The Re-Greening of Puerto Rico
Researchers survey the damage to Puerto Rico’s forests in the aftermath of Hurricane Maria.
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Climate Change and the Re-Greening of Puerto Rico
Ecologist Maria Uriarte investigates the effects of Hurricane Maria on the forests of Puerto Rico, and how long-term climate change may affect them.
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Climate Migrants Will Soon Shift Populations of Many Countries, Says World Bank
If emissions of greenhouse gases remain high, as many as 143 million “internal migrants” might move within their own countries by 2050.
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Can Soil Help Combat Climate Change?
Soil naturally absorbs a huge amount of carbon. Some scientists think we can use it to our advantage in the fight against global warming.
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In Continuation of Trend, 2017 Was Second Warmest Year on Record
Earth’s global surface temperatures in 2017 ranked as the second warmest since 1880, according to an analysis by NASA released today.
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Why Thawing Permafrost Matters
As the Arctic warms, the unfreezing of permafrost poses a threat to the planet.
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Rivers Predicted to Jump Banks More Often as World Warms
Rainfall changes caused by global warming will increase river flooding risks across the globe by the 2040s, says a new study.
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Humidity May Prove Breaking Point for Some Areas as Temperatures Rise, Says Study
A new study projects that in coming decades the effects of high humidity in many areas may surpass humans’ ability to work or, in some cases, even survive.
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
