Water is not just a liquid, water is life, one of the main riches of the Earth. Its resources are inexhaustible, it is an inexhaustible source of energy, it contains not only the world‘s reserves of deuterium – the fuel of future thermonuclear energy, but also colossal amounts of chemically bound hydrogen – an alternative to hydrocarbon and ―green‖ energy. The well-known statement of the Nobel laureate L. Montagnier that water determines not only the health, but also the well-being of the world‘s population is confirmed. A method is proposed for controlling not only the physicochemical properties of water (saturated vapor pressure, surface tension, osmotic pressure, etc.), but also successfully changed its chemical characteristics (pH and redox potential (ORP)). Given the technical simplicity of such a modification – processing with alternating electric potential, its successful application in agriculture is possible — an increase of more than 20 percent in crop yields while reducing irrigation water consumption. To explain such impressive practical results, the experimentally established fact of intensification of the photosynthesis process was confirmed (due to increased assimilation of atmospheric carbon dioxide by plants due to a decrease in the value of ORP in electrophysically modified water and an increase in pH to 7.4). Thus, the so-called ―carbon‖ agriculture becomes possible and rational, aimed not only at ensuring food satisfaction of the population, but also at minimizing the so-called ―carbon print‖ of man-made activities. The next step, taking into account the fact of increasing osmotic pressure in electro-physically modified water, becomes likely the success of the fight against viral infections. The unique physicochemical properties of electrophysical modified water (an increase in the pH of blood plasma and intercellular fluid) lead to an increase in the amount of hemoglobin-bound oxygen, and changes in osmotic pressure and viscosity minimize thrombosis and initiate ―osmotic shock‖ (ruptures of cell membranes). Acknowledgement: This work was carried out with the financial support of the Russian Science Foundation Grant No. 21 – 79 – 30029.