Not Your Grandpa's RV: This Roving Lab Tracks Air Pollution

Atmospheric scientist Ira Leifer installed special air sensors on a camper, then drove from Florida to California, measuring methane levels all along the way. More than 6,000 readings later, he found some noticeable spikes, especially around petrochemical plants and urban areas like Los Angeles.

Source: http://www.npr.org/2013/05/18/184863769/not-your-grandpas-rv-this-roving-lab-tracks-air-pollution?ft=1&f=1007

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