The presence of nitryl chloride in polluted urban air can enhance the production of ozone by up to 41%, according to a new modeling study constrained by ground-based measurements.
cities
Posted inScience Updates
Tiny Accelerometers Create Europe's First Urban Seismic Network
The system, under development in Acireale, Italy, could be used to monitor earthquakes in real time and help rescue workers focus efforts where they’re needed most.
Posted inNews
Experts Focus on Efforts by Cities to Deal with Climate Change
Urban areas must take political and practical considerations into account as they prepare for the effects of climate change, say experts at AGU Fall Meeting.
Posted inScience Updates
Urbanization Affects Air and Water in Italy's Po Plain
Satellite and ground-based measurements show a correlation between urban growth and increased levels of pollutants.
Posted inNews
Reduced Middle East Air Pollution Linked to Societal Disruption
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.
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