201924
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You Asked: If CO2 Is Only 0.04% of the Atmosphere, How Does it Drive Global Warming?
Short answer: A little bit goes a long way.
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Finishing on the Boat
Silting rivers and bad roads made it difficult to find a last site. After a successful installation and an upgrade to an existing GPS site, we left the boat for land. We then discovered the local river had washed away some of our equipment.
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California and Automakers Confront Trump’s EPA
California had leverage and used it to cut a favorable compromise with four auto manufacturers over auto mileage standards.
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Where Science Meets Policy: Lamont-Doherty Earth Observatory Hosts Environmental Policy Students
As part of the MPA in Environmental Science and Policy, students undertake science courses that will serve as a foundational basis for tackling policy issues. Who better to learn from than the individuals who dominate earth science research?
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Photo Essay: Living on the Ice in Juneau, Alaska
We’re developing a technique that uses ice-penetrating radar to measure how quickly snow turns to ice. To take our measurements, we needed to camp out in the Juneau icefields for a few weeks.
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Hiron Point Once More
We sailed to Hiron Point in the Sundarban Mangrove Forest to upgrade old and install new equipment. I have been to this beautiful remote site several times before. After competing the work, we sailed for over a day to reach our next site on a primary school roof.
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Podcast Discusses How Energy Markets are Impacting the Global Economy
In a new episode of the Columbia Energy Exchange, host Jason Bordoff interviews a renowned economist specializing in macroeconomics and energy economics.
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More Than Rice: The Future of Food Security in Vietnam
Representatives from Vietnamese government agencies and farmers’ groups came together at a recent workshop to discuss how to improve access to climate information for more effective decision making.
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The Climate Epochs That Weren’t
Climate scientists often invoke the Medieval Warm Period and the Little Ice Age as natural worldwide climate swings predating human influences. They may not have worked the way we think.
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
