Guest Blogger

Below the Mesocyclone: The stovepipe tornado stretches down below the structure of the supercell mesocyclone and tornado cyclone. This would go on to become the EF-5, 2.6-mile-wide monster.

Increasing Tornado Outbreaks: Is Climate Change Responsible?

In a paper published in the journal Science, researchers looked at increasing trends in the severity of tornado outbreaks, measured by the number of tornadoes per outbreak. They found that these trends are increasing fastest for the most extreme outbreaks.

by |December 1, 2016
Bridgit Boulahanis and Mike Perfit prepare for their dive to the seamount. Photo courtesy of Dan Fornari.

My Trip to the Bottom of the Sea

What’s it like to travel to the bottom of the sea? Lamont graduate student Bridgit Boulahanis describes the bioluminescence and colorful sea life as she explores a seamount by mini submarine in the Pacific Ocean.

by |November 26, 2016
The Liona seamount.

A Front Row Seat on the Ocean Floor

Ocean scientists are, in their hearts, explorers. Our group aboard the R/V Atlantis may be more infected with the exploration bug than most. The first goal of our expedition makes that clear: We aim to map regions of the seafloor never before seen by human eyes.

by |November 15, 2016
Atti

Alumna Planting ‘Seeds’ for Sustainable Education in Africa

“What I enjoy the most is that I get to have to opportunity to solve real-life problems that affect hundreds of children and women that are part of our education and community development programs.”

by |November 6, 2016
13653061_10153732395967555_2153420417646701333_o

Climate Justice Advocate Strives to Create Solutions

“Climate adaptation often serves to reinforce existing power structures by focusing on technocratic solutions and empowering experts and policymakers. My research and career goals are framed by this understanding, and I seek to center political and social mechanisms in questions of adaptation.”

by |November 4, 2016
teaching assistant snip

Spring 2017 Undergraduate Teaching Assistant Positions

The Undergraduate Program in Sustainable Development is currently accepting applications for spring 2017 teaching assistant positions. Applications will only be accepted from graduate students and undergraduate juniors or seniors at Columbia. The deadline to apply is Nov. 21.

by |October 21, 2016
Antarctica. Courtesy of the Long Term Ecological Research Network

What Happens to Ecosystems When Antarctica’s Ice Melts?

A special section in the October issue of BioScience featuring research by Lamont-Doherty Earth Observatory scientists examines the effects of intense melting on two Antarctic ecosystems, tracking impacts all the way from microbial food webs to shifting penguin populations.

by |October 13, 2016
The recent bombing in New York's Chelsea neighborhood brought home again the random nature of the threat from terror attacks.

The New State of Terrorism: How to Prepare

Here are some other things you should know to help cope with a local terror event caused by a “lone wolf” attacker or active shooter situation, from the National Center for Disaster Preparedness.

by |October 4, 2016
Pollution from the Summitville gold mine in Colorado led the federal Environmental Protection Agency to declare the mine, whose owner had declared bankruptcy in 1992, a Superfund cleanup site.

Comments to SEC Encourage Environmental Risk Disclosure

Earlier this summer, the Securities and Exchange Commission proposed changes to their disclosure requirements for publicly listed mining companies. The Columbia Water Center was among those submitting comments on the proposed new rules.

by |October 3, 2016
Retired Rear Admiral David Titley described the potential effects of climate on geopolitics.

An Admiral Assesses Climate Change

Columbia University’s Initiative on Extreme Weather and Climate hosted its biggest seminar to date. David Titley presented a talk entitled Climate Risk and National Security: People not Polar Bears. Titley, a retired U.S. rear admiral and now a professor of meteorology at Pennsylvania State University, brought humor to a serious topic and how it affects people and geopolitics.

by |September 23, 2016