Climate293
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Interdisciplinary Work: Big Challenge, But Not Impossible
Health professionals, epidemiologists, health management workers and health policymakers are increasingly concerned about the potential impact that climate variability and climate change could have on public health. However, many public health professionals are not yet aware of the ways in which climate information can help them manage the impacts of climate on their work. At…
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Arctic Sea Ice in a Warmer Climate
Dr. Jennifer Kay, a post doc at the National Center for Atmospheric Research (NCAR), was at Lamont recently to give a talk entitled “Mechanisms for Recent Sea Loss.” Kay’s talk offered a detailed explanation of recent sea loss in the Arctic, including the all-time low experienced in 2007. Kay also outlined mechanisms that may have…
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Low-cost water management in Ethiopia
Water capture and storage for irrigation has been an ongoing theme of research in Columbia’s earth and environmental engineering department, but Professor Upmanu Lall has recently taken things a step further. With funding from the Pulitzer family, Lall challenged a group of students in his senior engineering course to design a low-cost system of water…
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McKinsey’s New GHG Abatement Curve
McKinsey & Company has just released a new study outlining the potential costs of climate change mitigation. The report, which revises work originally published in 2007, evaluates 200 greenhouse gas abatement opportunities across 10 sectors and 21 world regions. It concludes that greenhouse gas emissions reductions of 35-40% below 1990 levels by 2030 are achievable…
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Emissions standards to get Californicated
Less than a week into his presidency, Barack Obama is poised to take his first step on the long road to averting climate catastrophe. The Times reports that Obama will allow California to raise automobile emissions standards for greenhouse gases above the national level. (OK, technically Obama has only ordered the EPA to review California’s…
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Nearly All of Antarctica Is Warming
New Study Shows Steady 50-Year Rise
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Orange you glad we counted the carbon?
There’s an article in today’s New York Times about PepsiCo’s effort to calculate the carbon footprint of its products, starting with Tropicana orange juice. A half-gallon of Tropicana represents the equivalent of 3.75 pounds of carbon dioxide emissions. This is roughly the same amount of carbon dioxide emitted by a 5-mile drive to the grocery…
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Antarctic Scientists Inaugurate ‘Ocean Station Obama’
Far From Washington, Gathering Climate Data Under New President
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Lonnie Thompson’s 7,000 Meters of Ice
I’ve been meaning to blog about Lonnie Thompson’s visit to Lamont last week; I suppose it’s the frigid temperatures here in New York that have kept melting tropical glaciers on my own back burner. For those who don’t know, Lonnie Thompson runs the Ice Core Paleoclimatology Research Group at the Ohio State’s Byrd Polar Research…
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