News

New research from Columbia climate scientists shows that the 1987 ozone treaty, designed to protect the ozone layer, has postponed the occurrence of the first ice-free Arctic by as much as 15 years.

On July 1, Jeffrey Shaman will become interim dean of the Climate School, continuing the work of co-deans Alex Halliday, Jason Bordoff, Ruth DeFries, and Maureen Raymo, climate leaders who built the School’s strong foundation.

Inspired by Bash the Trash, kids had a chance to make musical instruments out of reusable materials, then perform in a parade.

When she came to Columbia, she started a research project on hurricanes that she thought would last a year. More than 20 years later, hurricanes are still her main area of interest.

Oceans have tides, and so does the solid earth. Could they have an effect on earthquake faults? Yes, say scientists, but that doesn’t necessarily mean they cause big quakes.

Climate School researchers are carrying out fieldwork on every continent and every ocean. A guide to upcoming projects.

Smoke from wildfires is a health threat to everyone, but Indigenous people in South America are especially vulnerable due to a number of factors.

Analyses of plant remains and other evidence show that the landscapes our ape ancestors evolved in existed much earlier than previously thought.

A celebration held at Columbia University recognized scientists Anny Cazenave and David Kohlstedt as the 2020 and 2023 Vetlesen Prize recipients.

Counterintuitively, seas were rising around Greenland as it went through a cold period centuries ago. This helped drive out Viking colonists, says new research.

Environmental scientist Martin Stute and Barnard student Grace Brown discuss their project studying the potential for a rock formation in Oman to store carbon dioxide.

At a symposium on land subsidence, I learned about how the Dutch transformed their country so that about a quarter of it is below sea level and how they cope with it.