When the morning Fog clears

You can how much of it  was natural and how much made by humanity, but the good news is?
We are assured that none of this is harmful, even though on the first picture the cloud is from the Saltend refinery and the other picture is of the many refineries across the Humber at the rather aptly name Killingholme refinery.
Isn't that reassuring?
We were told the same thing about the "steam" from the Drax, Ferrybridge and Eggborough coal powered Power Stations, then found out they were causing acid rain that crosses the North Sea and kills the Forests in Norway.