A time of rampant deforestation to feed the furnaces of the industrial age. Forestry did not yet exist (it would only emerge later in the 19th century). For this reason, there were hardly any closed-canopy forests left in Germany between 1750 and 1850. In some cases, there was a serious lack of timber, with people burning wood that had already been processed (fence posts, stairs, etc.).
Central European forests are in a dire state – the worst in recorded history, c. 1750–1850