With the wildfires recently, the cub learned that sometimes the air is too stinky to go out. Around the same time, we went to a park across the river from some big oil refineries, and he saw the tall smokestacks feeding white plumes and flickers of fire into the sky.
Now he is convinced that factories make all clouds, and whenever it's overcast it's because the smokestacks are running.
Not quite sure that's how it works, kiddo.
