Possible aspects of realization of Maltus law energy analog are considered when not food but energy consumed by a man will be a limiting factor. Values obtained by changing the quantity of population as well as the consumed fuel quantity in the 21st century have been analyzed. A period was defined (2005-2085) when energy hunger is possible due to a higher rate of human reproduction comparing to the rate of energy consumption. From a new position, the laws of the Earth population growth are analyzed, based on the equality of the quantity of dying people to the quantity of those born τ years ago, where τ is life expectancy. The relationship between main parameters of economics and entropy have been investigated on the base of the second law of thermodynamics. A general correlation between S and M is proposed: dS = χ(HV/T)dM. This equation shows the direction of the spontaneity development of economical processes as part of a general Universal law. The original equation of removing from information to matter yields a line of attack on the problem of control of GNP in terms of financial ecology expenses. These equations enable to control output natural resources by economic laws, and to control activities for the restoration of wrecked nature.