Permafrost in excess of A great deal of Siberia is a major impediment to growth; volcanic exercise within the Kuril Islands; volcanoes and earthquakes about the Kamchatka Peninsula; spring floods and summer months/autumn forest fires all through Siberia and areas of European Russia that the development from the East Slavs https://landena73g8.theisblog.com/31008023/new-step-by-step-map-for-russia