A look into Twin Cities air quality

• Although carbon dioxide isn’t necessarily harmful to breathe, the MPCA is concerned with it and other gasses that cause climate change. Kari Palmer, MPCA environmental research scientist, said climate change is intertwined with air quality. Air pollutants — particulates, in particular— impact climate change, and warming will cause ozone levels to go up, she said.

St. Louis tornado in 1959 killed 21 - STLtoday.com

The weather on the night of Monday, Feb. 9, 1959, was all wrong for midwinter. It was 63 degrees downtown at midnight. Heavy storms pounded St. Louis with three inches of rain, flooding basements and streets. A motorist drowned near Alton.

The Weather Bureau office at Lambert Field had issued a severe-thunderstorm warning. Overnight, a wispy shape appeared on the bureau's World War II-vintage radar, then vanished. Forecasters pondered adding a tornado warning, but did not. It was February, usually not a time for tornadoes.