The smoke from the extreme forest fires on the US West Coast in September 2020 travelled over many thousands of kilometers to Central Europe, where it continued to affect the atmosphere for days afterwards. A comparison of ground and satellite measurements now shows: The forest fire aerosol disturbed the free troposphere over Leipzig in Germany as never before.
Click here for original story, Californian smoke drifted as far as Europe in 2020 and caused heavy clouding of sun
Source: ScienceDaily