Earth Sciences70
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Setting Off for Two Months at Sea
Sidney Hemming and the scientists aboard the JOIDES Resolution conduct the final preparations for their research cruise off southern Africa and introduce a girls’ school group from Mauritius to science at sea.
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In the Southern Ocean, a Carbon-Dioxide Mystery Comes Clear
Twenty thousand years ago, low concentrations of carbon dioxide in the atmosphere allowed the earth to fall into the grip of an ice age. But despite decades of research, the reasons why levels of the greenhouse gas were so low then have been difficult to piece together. New research, published today in the leading journal…
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A New Global Team Tracks Temperature Change Through Time
A new international consortium of scientists is bringing the history of temperature fluctuations across the entire Northern Hemisphere to life.
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Uncovering the Stories of Southern Africa’s Climate Past
Sidney Hemming is preparing to spend two months at sea studying global ocean circulation and southern Africa’s climate variability over the past 5 million years.
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In Gulf of Mexico, Microbes Thrive Above Natural Oil Seeps
New insight into how plankton and oil interact
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In Isolation, Community
Being aboard a ship is isolating—but for a scientist, it’s not lonely.
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The Floor of the Ocean Comes into Better Focus
The bottom of the ocean just keeps getting better. Or at least more interesting to look at.
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All I Wanted for Christmas Was for These Pumps to Work
We’ve just completed our first full station and are remarkably pleased with the results. We collected 8 seawater samples to measure helium isotopes; 20 to measure thorium and protactinium isotopes; 7 in-situ pump filters; 1 box core of the ocean floor; and more.
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Doing Science When There’s No Science to Be Done
With an abundance of time and a dearth of work, we have begun to devise ways of doing science before we can actually do science at sea. Among other things, we set up an imaging system to take pictures of particle filters we bring back from the deep sea.
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
