The currently observed climate change towards warming affects the expansion of the suitable range of new species of insects and microorganisms for the northern region, which, in turn, being carriers of many diseases, can increase the risk of invasion of domestic animals that have not previously been found in these areas of diseases. It is easy to assume that any climate change can affect the established way of life of the indigenous peoples of the North, the main life-supporting occupation for which is still traditional farming - breeding reindeer, cattle, including aboriginal, and herd horses, as well as hunting, fishing, picking berries and herbs. At the same time, northern animal husbandry occupies an important place in the economy, due to the characteristic way of life of the indigenous peoples of the North, especially northern reindeer husbandry. The trend of change in the indicator of the average annual temperature from 1961 to 2020 has been established in Yakutia towards warming in both central and northern regions. Such changes in the considered climatic indicators have a significant impact on the expansion of the distribution area of the ixodidae (hard ticks) to previously inaccessible northern territories. Since 2000, in the territory of the Republic of Sakha (Yakutia), there has been a gradual increase of tick attacks cases on people with the annual coverage of new regions, including the Arctic. Although Yakutia is not endemic for tick-borne encephalitis, there is concern about the annual growth and expansion of the geography of tick attacks on the northern territories - if cases were previously noted only in 3 southern regions, then at present - in 21 regions, including Verkhoyansk, which is part of the Arctic group of regions. The correlation between these indicators was = 0.584. In the situation under study, in 34.14% of the total variability, the increase in the number of registered cases of tick bites is explained by changes in the average annual air temperature in certain areas.