NOVELTY - The globally located photosynthesizing sites comprise closed cyclic systems for solving the issues of contemporary negative climate change, environmental pollution and scarcity of natural resources and food and for achieving the decentralization of industrial and urban complexes by innovative autonomous photosynthesizing technologies including production of hydrogen and oxygen through photosynthesizing sites, production of potable water and realization of an autonomous captive carbon global civilization.    USE - The globally located photosynthesizing sites are useful for the autonomous production of hydrogen and oxygen, for agricultural growth, for autonomous generation of potable water from seawater, for the production of carbon based products supported by comprehensive autonomous material recycling facilities (all claimed) and for replacing fossil fuels with sources of fuel for combustion, energy generation and transportation based on solar or autonomic photosynthesis.    ADVANTAGE - The globally located photosynthesizing sites are capable of efficiently preventing contemporary squandering of natural resources, environmental pollution, political confrontations, water vapor emissions and heat input into the atmosphere.    DETAILED DESCRIPTION - The globally located photosynthesizing sites comprise closed cyclic systems for solving the issues of contemporary negative climate change, environmental pollution and scarcity of natural resources and food and for achieving the decentralization of industrial and urban complexes by innovative autonomous photosynthesizing technologies including production of hydrogen and oxygen through photosynthesizing sites, production of potable water and realization of an autonomous captive carbon global civilization. The hydrogen is produced by processes including: fixing carbon recycled as carbon dioxide as carbohydrates in photobioreactors for producing oxygen as a byproduct; digesting the chain-reaction carbohydrates to produce hydrocarbons and carbon dioxide; catalytically reforming the chain-reaction hydrocarbons to produce unsaturated hydrocarbon compounds with hydrogen gas as a byproduct; and combusting the chain-reaction reformed unsaturated hydrocarbons to generate electricity with water vapor and nitrogen as byproducts. The generated electricity provides the energy for irradiating the photosynthesizing step. The carbon dioxide emitted in the digestion and combustion processes is recycled to the photobioreactors to close both the carbon and energy cycles. The crop-growth, water, nutrients, carbon dioxide and biomass used for the agricultural growth are recycled on a permanent basis, where the recycled biomass provides the energy of photo-irradiation to closely approach an autonomous closed system. The electric power generated from photosynthesized biomass is converted to pulsed laser beams for the irradiation of photobioreactors in closed systems with salt free water as byproduct and for transmission to distant sites for photosynthesizing purposes. The nutrient pumped through the reactors contains added chemical ingredients such as sulfide ions to cause the emission of hydrogen instead of oxygen. The world's centralized power stations and industrial complexes are replaced by autonomous photosynthesizing sites dispersed over decentralized populated areas.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of photosynthesizing sites.