NOVELTY - An apparatus for generating work from atmospheric heat and atmospheric humidity, comprises reverse radiator to generate warm water by capturing and concentrating atmospheric heat, a de-humidifier to generate tepid water by capturing and concentrating atmospheric humidity; a replenish module to generate hot water from warm water and tepid water; and an endothermic reactor to generate commingled mixture of gas and water by converting hot water into diatomic hydrogen and stoichiometric oxygen.    USE - As an apparatus (claimed), for generating work from atmospheric heat and atmospheric humidity (claimed) to produce energy which is used as a fuel for exothermic reactor such as internal combustion engine, turbine engine or fuel cell; useful for performing aero-thermal useful in power generation/co-generation stations, automotive power generators, automotive engines, diesel engines, marine engines, railroad locomotive engines, farm machinery engines, golf cart engines, all forms and sizes of fuel cells and all forms and sizes of turbines.    ADVANTAGE - The apparatus minimizes the need to develop extensive or expensive centralized infrastructures to achieve a vibrant, cost effective, and pollution-free hydrogen economy. The operating fluids utilized by the exothermic reactor and the endothermic reactor, are free of carbon, nitrogen, carbon compounds, and nitrogen compounds.    DETAILED DESCRIPTION - An apparatus for generating work from atmospheric heat and atmospheric humidity, comprises reverse radiator to generate warm water by capturing and concentrating atmospheric heat, a de-humidifier to generate tepid water by capturing and concentrating atmospheric humidity; a replenish module to generate hot water from warm water and tepid water; and an endothermic reactor to generate commingled mixture of gas and water by converting hot water into diatomic hydrogen and stoichiometric oxygen; a phase separator to process the commingled mixture of gas and water to separate the cold water and the gas from the commingled mixture, where the cold water from the endothermic reactor is coupled to the intake side of the reverse radiator, and where the gas comprises the diatomic hydrogen and stoichiometric oxygen; and an exothermic reactor to generate work from the gases. The waste output of the exothermic reactor is a waste hot water, and the waste hot water is recycled and returned to an intake of the endothermic reactor for reuse. The waste hot water is endergonicly decomposed into hydrogen and oxygen. The output of the exothermic reactor is coupled to an input of the endothermic reactor. The apparatus is adapted to produce the diatomic hydrogen and stoichiometric oxygen from water in response to the endothermic reaction, where the endothermic reactor includes an output port for outputting the hydrogen and oxygen, and an exothermic device that includes an input port for receiving the hydrogen and stoichiometric oxygen. The exothermic device is selected from internal combustion engine, gas turbine engine, stove, heater, furnace, reciprocating piston engine, distillation unit, water purification unit or hydrogen/oxygen flame jet.    DESCRIPTION OF DRAWING(S) - The figure shows a block diagram of an exothermic reactor.