American Research Journal of Agriculture

One of the issues discussed among researchers is how the modern warming will damage on agricultural productivity. Thus, the increase of the temperature is observed by the decrease of rainfall and increase of drought frequency in some regions of the world. In this case, the decrease of agricultural productivity is inevitable. Of course, in some regions contrast process also can happen, ie., temperature and rainfall may increase and drought tendension may decrease. In this case, productivity will increase. For clearing the issue, new strategy, that will take into account climate changes happening in both warming and colding periods is suggested. On the other side, the ways of defining supposed risks of processes influencing on productivity dynamics are shown. For this the notion of angle coefficient of trend is included for the first time.