The remaining forests of Europe (click to enlarge).
It is interesting to note that there are hardly any trees in Iceland, while Finland, which is on more or less the same latitude, has the largest percentage of forest among European countries. The story goes that when the Vikings arrived in Iceland the country was forested “from mountain to shore” – at which point they promptly cut all the trees down for building material and firewood. Then their sheep made sure they could never grow back and subsequent erosion and soil loss ensured the end of the reign of trees for good. But then did the Vikings do all their grazing in Iceland and left Sweeden intact?