Author: Cathy Vaughan2

Cathy Vaughan works in the Latin American program at the International Research Institute for Climate and Society.

Climate and Meningitis in Africa

We hear a lot about the impact of AIDS, tuberculosis and malaria in Africa. But if you’re keeping track, you may as well add bacterial meningitis to the list of nasty diseases that plague the continent. Bacterial meningitis is an infection of the thin lining that surrounds the brain and the spinal cord, known as…
Climate Change and CO2 Uptake

The Keeling Curve, a record of rising atmospheric carbon dioxide since 1958, is one of the most recognizable images in modern science. Despite its ubiquity, this iconic graph tells only half – or, more precisely, 57% – of the story. That’s because the other 43% of cumulative anthropogenic emissions haven’t made it to the atmosphere…
ILAS and the IRI Meet, Look Ahead to Copenhagen

Researchers from across Columbia in early May at a faculty seminar entitled Climate Change, Public Policy, and Development. The event was jointly organized by the Institute of Latin American Studies (ILAS) and the International Research Institute for Climate and Society (IRI). The purpose of the meeting was to explore ways in which Columbia University could…
Early Human Influence on the Climate

I’ve been meaning to blog about our visit from Bill Ruddiman, professor emeritus at the University Virginia and former Doherty Senior Research Scientist, who stopped in at his old stomping grounds last month. Ruddiman just wasn’t here to renew old ties, though. Rather, he used his visit as an opportunity to continue a rather heated…
Deep Thoughts on Deep Convection

Deep convection refers to the thermally driven turbulent mixing that moves air parcels from the lower to the upper atmosphere. In the tropics, this generally involves the vertical ascent of warm moist air and, ultimately, precipitation. But while some aspects of deep convection are well understood, others remain a mystery. Dr. Larissa Back, a NOAA…
La Niña Conditions to Continue?

According to Tony Barnston of the IRI, the La Niña conditions which began in December are likely to continue until mid-March. Click on the graph below for a better look at the probabilistic forecast. As mentioned in an earlier post, La Niña events are characterized by unusually cold sea surface temperatures (SST) in the central…
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…
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…
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…

Climate and Meningitis in Africa

We hear a lot about the impact of AIDS, tuberculosis and malaria in Africa. But if you’re keeping track, you may as well add bacterial meningitis to the list of nasty diseases that plague the continent. Bacterial meningitis is an infection of the thin lining that surrounds the brain and the spinal cord, known as…
Climate Change and CO2 Uptake

The Keeling Curve, a record of rising atmospheric carbon dioxide since 1958, is one of the most recognizable images in modern science. Despite its ubiquity, this iconic graph tells only half – or, more precisely, 57% – of the story. That’s because the other 43% of cumulative anthropogenic emissions haven’t made it to the atmosphere…
ILAS and the IRI Meet, Look Ahead to Copenhagen

Researchers from across Columbia in early May at a faculty seminar entitled Climate Change, Public Policy, and Development. The event was jointly organized by the Institute of Latin American Studies (ILAS) and the International Research Institute for Climate and Society (IRI). The purpose of the meeting was to explore ways in which Columbia University could…
Early Human Influence on the Climate

I’ve been meaning to blog about our visit from Bill Ruddiman, professor emeritus at the University Virginia and former Doherty Senior Research Scientist, who stopped in at his old stomping grounds last month. Ruddiman just wasn’t here to renew old ties, though. Rather, he used his visit as an opportunity to continue a rather heated…
Deep Thoughts on Deep Convection

Deep convection refers to the thermally driven turbulent mixing that moves air parcels from the lower to the upper atmosphere. In the tropics, this generally involves the vertical ascent of warm moist air and, ultimately, precipitation. But while some aspects of deep convection are well understood, others remain a mystery. Dr. Larissa Back, a NOAA…
La Niña Conditions to Continue?

According to Tony Barnston of the IRI, the La Niña conditions which began in December are likely to continue until mid-March. Click on the graph below for a better look at the probabilistic forecast. As mentioned in an earlier post, La Niña events are characterized by unusually cold sea surface temperatures (SST) in the central…
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…
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…
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…