The U.S. Environmental Protection Agency (EPA) has developed two tools that let computer users “see” air quality information on a virtual globe by combining EPA air data with Google mapping tools. The first tool is part of the agency's new “Air Emission Sources” Web site, which is designed to make emissions data for six common pollutants easy to find and understand. Based on the latest EPA National Emissions Inventory, the site uses charts and Google Earth files to answer user questions about overall emissions, emissions by type of industry, or emissions by largest polluter. The EPA also is providing Air Quality Index (AQI) information in the Google Earth format to quickly see air quality across the country. For more information, visit the following Web sites: http://www.epa.gov/air/emissions and http://www.airnow.gov.