807 The housing and municipal services (HMS) sector is the main consumer of energy resources in Russia. For example, in 2007 for provision of the stock of res� idential and commercial buildings with thermal and electrical energy, 40% of the total energy resources were consumed (for comparison, the shares of indus� try and transport were 33 and 24%, respectively, of agriculture and forestry, less than 3%) (1). The impact of both presentday climate changes and those anticipated in the coming decades on vari� ous spheres of human activities has been studied in many scientific works. As for Russia, the majority of researchers anticipate positive changes in the sphere of heat supply (2-4), agriculture (4), and water transport (4), while the main adverse consequences of global warming on the national economy are associated with degradation and destruction of permafrost (4). In the field of the energy industry there is predicted substan� tial saving of energy resources due to a reduction in the duration of the heating period in Russia and an increase in the average ambient air temperature (2, 3), but in a number of works (4, 5) the likelihood of increasing expenses in the national economy because of the necessity for additional air conditioning in buildings caused by an increase in the air temperatures is being given much attention in the USA (6), where air conditioning systems (ACS) account for about 16% of the total electric power consumption by house� holds, in Europe (about 6%), and in other countries (7). For Russia, only isolated estimates of the electric power consumption for air conditioning (8-10) and very approximate estimated forecasts of their dynam� ics under conditions of possible climate change (11) have been published. In monograph (12) the issues of taking account of meteorological factors only at short� term prediction of heating and electric loads are dis� cussed. Recent investigation into the dependence of the electric power consumption for air conditioning in the residential sector of Moscow on the ambient air temperature (13) may be thought of as one of the very first special works in this field. In this paper calculations of the amounts and the pattern of power consumption in the residential and commercial sectors of the Russian economy under conditions of the presentday economic growth and observed climate change, the results of the analysis of regional special features, and an estimate of the future power consumption in the HMS sector for the period until 2050, as well as the comparison with indicators found in foreign countries, are given. Abstract—This paper presents the results of calculating the amounts and the pattern of energy consumption in the residential and the commercial sectors of the Russia economy under conditions of the presentday eco� nomic development with due regard for climate change. The analysis of regional specific features and the esti� mate of the future energy consumption by the housing and municipal services (HMS) sector for the period until 2050, as well as a comparison with similar indicators found in foreign countries, are given. It has been shown that, as a result of improved living standards, enhanced energy efficiency in the HMS sector, and global warming for the next decades to come, a considerable reduction in the specific energy consumption in this sphere will take place, while the pattern of the energy consumption in it will correspond to the presentday situation in Canada. In southern regions of Russia this indicator will approach the values typical for the northern contiguous states of the USA.