Yale Environment 360: New satellite data released by NASA provide dramatic visual evidence of the dangerous air quality reported from cities across Asia and the Middle East this month. Based on data collected from its satellite-based Ozone Monitoring Instrument, a map released by NASA scientists illustrates high levels of nitrogen dioxide (NO2) -- shown in orange -- over several major cities, including Istanbul, Tehran and New Delhi, during the first week of January. Satellite measurements of nitrogen dioxide concentrations...