Our weekend visit to Paso Robles unearthed, or I should say, "unskied" a new phenomenon --- man-made clouds. When I took this picture, I counted 15 contrails extending south to north. Their dispersing vapor was covering most of the sky.
There are folks who think this increase in air traffic is contributing to the greenhouse effect because of all the 'cloud' cover.
Of course, this was Super Bowl Sunday and there were a lot of people who could only see the game while sailing along at 30,000 feet.