Climate299
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Top misconceptions about El Niño and La Niña
Forecasts by the International Research Institute for Climate and Society and other institutions show that a weak El Niño has developed in the equatorial Pacific, and is likely to continue evolving with warmer-than-normal conditions persisting there until early 2010. What exactly is this important climate phenomenon and why should society care about it? Who will…
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Abrupt Climate Change in a Warming World
Early last month, I attended a meeting on Abrupt Climate Change in a Warming World. Climate Matters @ Columbia has discussed abrupt climate change before, referring to the hydrologic cycle, and with regards to melting sea ice or permafrost. Shifts in the earth climate are a known fact: crocodile-like reptiles lived in Greenland 55 million…
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The latest on permafrost
Permafrost is ground that remains at or below freezing for two or more consecutive years (for great information on permafrost see the National Snow and Ice Data Center). Climate researchers worry that permafrost will thaw as temperatures rise due to climate change, releasing carbon dioxide and methane into the atmosphere. Two recent studies indicate that this concern…
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Plasma Gasification: A Solution to the Waste Disposal Dilemma?
Waste not, Want not? The source of this proverb is unknown, but I’m going to hazard a guess and say it wasn’t your average (modern) American. I say this because your average American runs through 56 tons of trash a year – including 500 plastic cups and 650 pounds of paper. If we were to…
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India’s Climate Envoy: In Global Climate Treaties, Equity is Imperative
In a lively talk at the Indian Consulate in New York last Thursday, Indian climate envoy Shyam Saran called for technology and resource transfer from developed to developing countries, saying that because they are responsible for the bulk of historic carbon emissions, developed countries should bear the brunt of climate adaptation and mitigation costs. A…
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Nuclear Dark Ages? Or Nuclear Renaissance?
“I know that vibration wasn’t normal” Jack Lemmon famously uttered these words in the 70s blockbuster The China Syndrome in reference to unusual activity taking place at his nuclear reactor. Lemmon, a shift supervisor at the plant, uncovers alarming evidence that the plant is fundamentally unsound and demands that it be shut down. His concerns…
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Turning CO2 Into Stone
A power plant in Iceland is set to become the first in the world to try turning carbon dioxide emissions into solid minerals underground, starting this September.
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El Niño Conditions Imminent
According to Tony Barnston at the International Research Institute for Climate and Society, El Niño conditions are now evolving in the tropical Pacific. El Niño is the name given to sustained sea surface temperature (SST) anomalies greater than 0.5°C across the central tropical Pacific Ocean; it is the warm phase of the El Niño Southern…
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Innovative Insurance Aims to Buffer Poor from Climate Risks
New Report Details Policies Based on Weather
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