## 4 Discussion  
In summary, using the two classic atmospheric models, mid-latitude \(f\)-plane, and \(\beta\)-plane models, for baroclinic instability we have estimated the climate change impact on the mid-latitude moisture transport. Fundamental dynamical parameters, static stability parameter, and MTG, were used as indicators of climate change, and the static stability parameter was calculated both with and without considering the atmospheric moisture (\"moist\" and \"dry\" models respectively). We have shown that neglecting atmospheric moisture in the calculation of static stability parameter (in other words, the use of the dry static stability parameter instead of the effective static stability parameter) leads to tangible differences between the results obtained using dry and moist models. Because of the climate change, the dry static stability parameter slightly increases, weakening AMEMF only insignificantly (by less than 0.5%). At the same time, the effective static stability parameter decreases causing an intensification of baroclinic instability and, consequently, an increase in AMEMF of about 5%. In addition to affecting the static stability of the atmosphere, climate change also affects the MTG, which is one of the main fundamental dynamical parameters that \"controls\" the global atmospheric circulation and the eddy meridional moisture transport. Although the changes in MTG in the lower troposphere and the upper troposphere have opposite signs, the mass-weighted vertically averaged annual-mean MTG increases under global warming. This leads to an enhanced vertical wind shear producing more favorable conditions for the development of baroclinic instability and generation of large-scale atmospheric eddies that transport moisture from low to high latitudes. According to the climate change scenario discussed here, the response of the mass-weighted vertically averaged annual mean MTG to an increase in the surface temperature of 1 \({}^{\circ}\)C is about \(-\)0.2 \({}^{\circ}\)C per 1000 km, which is \(\sim\)2.7% of the base value. In turn, under this change in MTG the parameters \(\Lambda\) and \(u_{T}\), which characterize the vertical wind shear, also increase by 0.8 ms\({}^{-1}\) bar\({}^{-1}\) and 0.2 ms\({}^{-1}\) respectively, thereby strengthening the eddy meridional moisture transport by about 4%. Suppose that the static stability of the atmosphere and the MTG are independent of each other, or in other words, suppose that these parameters change independently of one other under the influence of climate change. Then, from the moist models (models with effective static stability parameter), it can be estimated that an increase in near-surface temperature by 1 \({}^{\circ}\)C leads to an increase in AMEMF of about 9% compared with the reference climate state. However, since the effect of static stability is negligible in dry models, an increase in AMEMF is solely attributable to a change in the MTG. The assumption that the parameters are independent of each other is fairly often used in the sensitivity analysis of systems when considering the influence of infinitesimal parameter variations on model variables. This approach is referred to as \"One-factor-at-a-time\" (OAT). In our case, the use of this approach is quite reasonable, since we are studying the effects of infinitesimal variations caused by climate change in the static stability parameter and the MTG on the growth rate of unstable baroclinic waves and, hence, on the AMEMF. The sensitivity functions obtained represent an efficient tool for estimating the impact of various climate change scenarios on changes in the AMEMF  
In the climate change scenario being considered, the temperature of lower troposphere, in which the atmospheric moisture is concentrated, increases by about 1.5 \({}^{\circ}\)C. This leads to an increase in specific humidity of about 10.5%. Thus, since both AMEMF and atmospheric water vapor content increase under this scenario, a rather noticeable restructuring of the global water cycle is expected.