air quality

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 Redfish Rocks Marine Reserve in Oregon was established in 2009. Photo: Kirt Edblom

How Well is the World Protecting Ecosystems and Human Health?

The new global environmental report card is out. The 2016 Environmental Performance Index graded 180 countries on how well they are protecting human health and their ecosystems. While the world is making progress in some areas, it is seriously falling behind in others.

by |February 18, 2016
Jeffany Acosta SSFRP 2015

Spring 2016 Undergraduate Research Assistant Opportunities

The Earth Institute will offer nine research assistant opportunities for undergraduate students during the Spring 2016 semester.

by |December 1, 2015
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.

La Nina illo jp2

Bad Ozone Days in Western U.S. Linked to Pacific Weather

A new study shows that ozone pollution in the western United States can be increased by La Niña, a natural weather cycle at the surface of the Pacific Ocean. The finding is the first to show that the La Nina-El Nino cycles directly affects pollution.

by |May 12, 2015
Map showing average exposure to particulate matter fine concentrations

Bottom Up or Top Down? Another Way to Look at an Air Quality Problem

While not all countries have the financial wherewithal and capacity to deploy ground-based instruments for air-quality monitoring, and for some countries monitoring information is not available to the public, for example, through health advisories, another way exists to assess air pollution levels: through satellites.

by |March 7, 2012