This was a surprise article and graphic. I was stunned to see the results of the National Lightning Detection Network analysis of lightning over the last 11 summers. It is obvious that lightning ( and thunderstorms ) are occurring primarily during the work week in the Southeastern United States. The predominant theory at this point in time is that the extra pollutants released during the work week creates enhanced conditions for thunderstorm development.
The graphic and article are located at http://climate.gsfc.nasa.gov/viewImage.php?id=254
The graphic alone is located here: http://climate.gsfc.nasa.gov/iotw/20090212144628.jpg
Pretty amazing huh? We do affect our environment!
