TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Source: The source of non-fossil energy is a solar cell.Preferred Arrangement: The reactor has a linear electrode connected to the pulse power supply, inserted in the hollow portion of a cylindrical electrode applied with grounding potential. The pulse power supply has a inductor connected in series between two input terminals to which direct current input voltage from the source of non-fossil energy is applied, and semiconductor switches (I,II). A cathode terminal is connected to the other end of the inductor connected to the anode terminal of semiconductor switch (I). The anode terminal is connected to the gate terminal of semiconductor switch (I), with a diode. In the inductor, a high-voltage pulse is generated accompanying turn-off of semiconductor switch (I) by turn-off of semiconductor switch (II).The inductor is magnetically coupled with a primary coil. A secondary coil of more winding number than that of the primary winding, is also provided. A voltage less than the practical maximum voltage of semiconductor switch (I), is applied to the primary coil. The voltage generated in secondary coil is given by, N2/N1 or more of the voltage applied to the primary coil, where N1 is winding number of primary coil and N2 is winding number of secondary coil. The direct current input voltage is more than the turn-on voltage of semiconductor switch (I).Preferred Method: Carbon dioxide is reduced to carbon monoxide by generating discharge by the high-voltage pulse. Further, the reaction which converts carbon monoxide into an organic matter, is promoted by the generated discharge. The discharge generated by the high-voltage pulse promotes reaction of carbon monoxide and water vapor in air, and organic matter is produced. The water vapor is electrodissociated, and hydrogen is generated. The reaction of carbon monoxide and hydrogen is promoted by the discharge. The discharge also promotes reaction of organic matter and oxygen in air to form another organic matter. The reaction of organic matter and water vapor in air is promoted, and a separate organic matter having a higher molecular weight is produced. The discharge changes the nitrogen molecule in air to radical nitrogen. A water-insoluble organic matter is produced by the reaction of organic matter and the radical nitrogen.    TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred Apparatus: The carbon-dioxide processing apparatus is provided with a water-storage or water-circulating container, a guide for the gas produced by dissociation of carbon dioxide in water (rain water or seawater) stored or circulating in the container, and a fan which forcedly guides the gas. The guide has a cylindrical electrode extended to the container, and a cylinder of the same diameter.