Cyclical climate crises shape the biological life on Earth, including the development and decline of subsequent human civilizations. Favorable climatic conditions cause a population increase within every civilization. Then comes the deterioration of climatic conditions and the internal crisis of civilization that sets the leader. Then comes the conquest of external countries and the development of the empire until its fall, which shape a new empire. The development and fall of subsequent civilizations follow the rhythm of the movements of the earth's coating, what I described in my works. Chinggis Khan's empire was born during the climate crisis in Asia. At that time, favorable climatic conditions prevailed in Europe, and it was in the direction of Europe that the Mongol expansion was directed. In the meantime, between the Mughal empire and Napoleon's empire, a powerful Ottoman Empire emerged, whose development indicates the shift of favorable climate zones from East Asia to the west towards Turkey. The empire developed and fell before the summit of the Little Ice Age that was destroying Europe. Russian Empire developed in almost the same time as the Ottoman Empire, and it collapsed in the internal crisis of the Russian revolution during the east European climatic crisis-see in my work below entitled "Russian revolution and the climate." The Little Ice Age caused an internal crisis in Europe, the expansion of Europeans to other continents, and the rise of Napoleon's empire. At that time, favorable climatic conditions prevailed in Asia. Another climate crisis in Asia is approaching, and I am sure that only the global opening of borders and the free migration of peoples can save the world from the Third World War. The analysis of past revolutions leads to the conclusion that two factors are needed for the revolution to take place: the dissatisfied people and the frustrated intelligentsia driving the revolution. 2 The dissatisfaction of the people comes from not fulfilling basic life needs, and the frustration of intelligence is a consequence of the lack of life prospects in the old social order. The environmental factors (natural and social ) determine the emergence of the revolutionary situation. Natural factors would include, above all, climatic factors - atmospheric precipitation and air temperature, which in the case of Russia, are very variable. They determine the basic social parameters - the size and sexual composition of the population developing in favorable climatic conditions for a given territory. For the revolution to take place, a decades-long period of good climatic conditions conducive to population growth and its masculinization would be needed, followed by a deterioration of this climatic situation and the social situation that was linked to it. In the decades before the Russian Revolution, there were better conditions in Russia (rising atmospheric precipitation) and social conditions (reform of education for Alexander I, release from serfdom and other reforms). The later deterioration of the social situation due to overpopulation and hunger of the land was followed by erroneous actions by the authorities that do not take into account the impact of the climatic factor and destroying the rural communities - сообщество. In the run-up to the revolution, climatic conditions gradually improved, and the apogee of the climate crisis took place just before the revolution. The crisis in Europe and the position of European powers pushing for world war caused deterioration of the internal situation in Russia and consequently accelerated the revolution. To the deterioration contributed the coolings of the climate of 1901-1905 and 1914-1918. (See fig. 24). The European elites, mostly landowners, were bankrupted by the constantly going down prices of grain (from 1830 supplied by steamers from the USA (about 15% of Europe's grain needs)) and only war left to escape from it. Probably it was one of the main causes of the First World War, apart from the masculinization of the European population. The social factor decisive for the revolution is the size of the population able to survive in a given territory. When the population rises to the border value for a given territory, it becomes sensitive to any deterioration of living conditions because the environmental resources available to individual units decrease, and also, due to the population density, social distances are reduced, which increases the level of aggression. Such a deterioration in the life situation of the Russian people uprooted Russian nobility, intelligentsia, and the Jewish community occurred in the period preceding the revolution, ie, from 1861 to 1917. The climate crisis and the lack of knowledge about the real problems of Russian society determined the outbreak of the revolution. Another reason was to stop by the state terror of progressive and positive evolution of the patriotically minded Russian intelligentsia. The victory of the Bolshevik Revolution was also decided by anti-Semitism, controlled by tsarism (?). In the further course of my work, I will try to show that the above factors determined the existence of a specific social situation and the outbreak of the Russian Revolution.