In different historical periods, climate change could occur in the direction of warming and cooling:
If warming occurred, then this process led to an intensive development of agriculture and to the fact that some southern crops left in the north, for example, vineyards could appear in the southeast of the island of Great Britain. The population grew.
Cooling, on the contrary, led to the fact that the population decreased or began to grow more slowly, agricultural crops moved from north to south, in some cases territories could become desolate, for example, Greenland by the beginning of the 15th century, where immigrants from Scandinavia lived for about 400 years.
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