air pollution

Falling sulfur dioxide emissions in the United States are expected to substantially increase rainfall in Africa’s semi-arid Sahel, while bringing slightly more rain to much of the U.S., according to a new study. (Francesco Fiondella/International Research Institute for Climate and Society

Reduced U.S. Air Pollution Will Boost Rainfall in Africa’s Sahel, Says Study

If U.S. sulfur dioxide emissions are cut to zero by 2100, as some researchers have projected they will be, rainfall over Africa’s Sahel region could increase up to 10 percent from 2000 levels, computer simulations suggest.

by |May 22, 2017
Students in the “Challenges of Sustainable Development” course presented their solutions for the problem of air pollution and haze in Singapore at Bard College’s Third Annual Asia and the Environment Research Conference. From left: instructor Jason Wong, Annie Block, Chelsea Jean-Michel, Marchelle Lundquist, Elsie Platzer, Francesca Merrick and Bennett Smith.

With a Little Software Magic, Students Create Pollution Solutions

Undergraduate sustainability students explored innovative software and 3D printing to create a set of possible solutions to help Singapore cope with a big problem: haze and air pollution drifting over the city state from burning forests in neighboring Indonesia.

by |April 20, 2017

Spring 2017 Undergraduate Research Assistant Opportunities

Undergraduates from Columbia and Barnard will be able to serve as research assistants on research projects related to sustainable development and the environment with distinguished faculty and researchers at the cutting edge of this burgeoning field.

by |December 28, 2016
indonesia peat

2015 Indonesia Fires Killed 100,000 People, Says Study

In fall 2015, smoke from agricultural fires in Indonesia blanketed much of equatorial Asia. Schools and businesses closed, planes were grounded and tens of thousands of people sought treatment for respiratory illnesses. In a new study, researchers estimate that the smoke caused upward of 100,000 deaths across Indonesia, Malaysia, and Singapore.

by |September 19, 2016

By the Numbers: Air Quality and Pollution in New York City

New York City is known for many things, but having clean air isn’t one of them. Explore some of the issues and challenges the Big Apple faces in clearing NYC’s air through interactive maps and data.

The False Trade-Off Between Economic Growth and Environmental Protection

The investment in environmental clean-up often stimulates other upgrades that enable businesses to more effectively compete in a global economy. Moreover, a clean environment reduces illness and that reduces the need for expensive health care.

by |May 23, 2016
A major impediment to stricter pollution regulation in China is the fear of slowing down the economy. Photo: Nicolò Lazzati / Flickr

Does Pollution Regulation Kill Jobs? Lessons for China from the U.S.

The problem of air pollution in China continues to reach new heights. To combat the problem in any real way stringent regulation is needed. A new paper from Columbia University’s Earth Institute finds that this can be done without hurting job creation.

by |April 6, 2016
The melting toe of the Athabasca Glacier in Canada Photo: Wing-Chi Poon

The Damaging Effects of Black Carbon

Air pollution, both outdoors and indoors, causes millions of premature deaths each year. The deaths are mainly caused by the inhalation of particulate matter, especially black carbon. But black carbon not only has impacts on human health, it also affects visibility, harms ecosystems, reduces agricultural productivity and exacerbates global warming.

by |March 22, 2016
Map showing exposure to fine-particulate matter from 1999-2011

The Changing Face of Air Quality

Looking at regional differences in PM2.5 concentrations gives us a sense of the changing face of air quality throughout the world.

Photo: Marcus Oh

Is City Biking Hazardous to Your Health?

As more and more people take to biking in the city, a new study will look at how much pollution bikers are exposed to, and what effects it might be having on their health.

by |June 16, 2015