[Kyodo News, February 24]Japan’s Ministry of Environment and other countries analyzed the carbon dioxide concentration in the Earth’s atmosphere observed by the artificial satellite “IBUKI” (GOSAT). The results showed that the increase in 2024 compared with the previous year reached 3.5ppm, which has been confirmed since the beginning of observation. the highest record. According to analysis, this is affected by human activities using fossil fuels and forest fires around the world.

Since April 2009, the Ministry of Environment, the National Institute of Environmental Research and Development and Aerospace Research and Development Agency (JAXA) has observed carbon dioxide and methane concentrations through the greenhouse gas observation technology satellite “IBUKI”. The average carbon dioxide concentration in the atmosphere in 2024 was 421.3ppm, the highest since observation, and the increase was also reached a new high compared with the previous year.

The carbon dioxide concentration was 388ppm in 2010 at the beginning of observation and continued to rise afterwards. Compared with the previous year, the average increase was 2.4ppm per year, and the previous record was 3.1ppm in 2016.

Data from the EU (EU) climate testing agency shows that the average temperature in 2024 is 1.6 degrees higher than the level before the Industrial Revolution, setting a record. Continuous observations from space also reflect the tendency of global climate warming.

The concentration difference occurs due to different heights of carbon dioxide, so it is difficult to correctly grasp the actual situation based on ground observation alone. IBUKI is flying at an orbital of 660 kilometers and can observe greenhouse gases from the surface to the upper end of the atmosphere. Calculate the estimated value based on the observed value. The data obtained will also help countries formulate climate change countermeasures. (over)