Invasions, armed conflict, sanctions, and economic distress correlate with cleaner air in high-resolution satellite data that reveal air quality at the individual city level.
cities
Posted inResearch Spotlights
Urbanization Threatens Drought-Reducing Clouds in California
Since the mid-20th century, increased urbanization along the southern California coast has raised nighttime temperatures, resulting in less morning fog and cloud cover.
Posted inResearch Spotlights
Do Cities Cause Thundersnow?
Analysis of lightning within a February 2011 snowstorm reveals that 73% of lightning flashes occurred close to tall, human-built structures.
Posted inScience Updates
Fortifying International Collaborations on African Air Quality
First West African Workshop on Air Quality, Measurements, and Modeling; Abuja, Nigeria, 9–12 June 2014
Posted inFeatures
Urbanization and Air Pollution: Then and Now
Analysis of decades of mitigation efforts in Los Angeles demonstrates that air quality in megacities can be greatly improved.
Posted inScience Updates
Defining Urban Geochemistry
International Association of GeoChemistry: Urban Geochemistry Working Group;
Columbus, Ohio, 5–6 August 2014
Posted inNews
Scientists Call for a Renewed Emphasis on Urban Geology
A renewed focus on geological aspects of cities could help mitigate natural hazards and provide a wealth of geological information, scientists say.
Posted inResearch Spotlights
Epidemiology Can Help Predict Urban Water System Failures
How are broken water pipes like fatalities in a heat wave? Researchers look to an epidemiological model to better care for infrastructure.