The metropolis looked positively Salt Lake City. In this case, the periodic weather phenomenon helped flush the skies over Los Angeles with nice, fresh, unstable tropical air, which broke up the inversions that normally trap noxious air over the basin. It just takes money, political will, public support and time. In addition, some pollution specialists say the improvement of the air over Los Angeles should give comfort to the nations now dreading the cost of confronting the heat-trapping gases associated with global warming. While citizens and industries here have spent untallied billions of dollars reducing and scrubbing their emissions, researchers report that the overall economy of the Los Angeles region has not been harmed by the efforts, but instead outperformed the rest of the country, including comparable industrial cities.
Ozone is the main ingredient in the stew of chemicals known as smog.
For comparison, last year saw seven Stage One episodes. Ten years ago, there were 66 such alerts. The weather patterns helped, but it is all part of a trend of continuing improvement. The peak concentrations. They're all going in a favorable direction.