Temporary surge in CO2 concentration 1998.04.15
The meteorological Agency's observations show that CO2 concentrations in the atmosphere soared in the first year of fiscal 1998. Compared to 1997, the CO2 average concentration in 1998 was in the three stations of Ayasato (Iwate prefecture), Minami Torijima (Tokyo), Yonaguni Island (Okinawa Prefecture), and 2. 8 to 3.1 ppm rose. It is said that it is almost twice the average of the year since the start of observation in 87 years. In addition to the burning of fossil fuels, the agency said that the effects of El Nino caused the temperature to rise worldwide and temporarily strengthened the effects of plant respiration and soil organic matter.