Global Warming4
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A New Way to Calculate the Price of Carbon Pollution
How to set carbon prices that are consistent with goals of both climate experts and economists.
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Glaciers May Record the Story of the Coronavirus Pandemic
Reductions in human emissions and changes in atmospheric composition during the coronavirus pandemic might be observed in future glacial ice cores.
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A New Primer on Climate Change Science
A new primer lays out the basics of climate science in compact form.
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Potentially Fatal Combinations of Humidity and Heat Are Emerging Across the Globe
A new study has identified thousands of incidents of previously rare or unprecedented extreme heat/humidity combinations in parts of Asia, Africa, Australia, South America and North America, including in the U.S. Gulf Coast region.
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Interactive Map: Daily Maximum Wet-Bulb Temperature
View an interactive world map that shows where extreme, sometimes potentially fatal, mixtures of heat and humidity are emerging across the globe.
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Shrinking Snowcaps Fuel Harmful Algal Blooms in Arabian Sea
Driven by changing climate, a uniquely resilient organism is taking over the Arabian Sea, disrupting food chains, fisheries, oil refineries and water desalination plants.
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Rain, More Than Wind, Led to Massive Toppling of Trees in Hurricane Maria, Says Study
The surprising finding suggests that future hurricanes stoked by warming climate may be even more destructive to forests than scientists have already projected.
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A Guide to the Good, Low-Carbon Life
For about 10 years, environmental law professor Karl Coplan has been trying to winnow down his direct footprint of CO2 emissions. He has been successful, and has just published a book chronicling his efforts.
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Rising Temperatures Will Mean More Fatal Injuries in the U.S., Says Study
Thousands more people could die from injuries each year as rising temperatures in the United States affect people’s behavior, says a new study.

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
