|1957-1979 | 1981-1999 | 2000-Present | Abbreviation |

CHRONICLE OF CARBON DIOXIDE (CO2) OBSERVATION						RELATED EVENTS
Atmospheric Observation (CO2 concentration)			Oceanographic Observation (pCO2 and TCO2)	Terrestrial Observation (CO2 flux)
Surface Observation	Aircraft and Satellite Observation	Ship Observation	Ship Observation	Surface Observation
		2000 Observations by JMA meteorological research vessel KEIFUMARU started on the fixed line in the Northwest Pacific. (JMA, Japan)	2000 Observations of pCO2 and TCO2 by the JMA meteorological research vessel KEIFUMARU started on the fixed line in the Northwest Pacific. (JMA, Japan)
				2001 Observations started at Teshio Experimental Forest, Hokkaido, Japan. (NIES, Japan)		2001 The Ministry of the Environment was established in Japan. The IPCC Third Assessment Report was published.
						2002 The Council for Science and Technology Policy of Cabinet Office established the Global Warming Research Initiative in Japan. The World Summit on Sustainable Development (Johannesburg, South Africa) was held.
			2003 Observations of TCO2 and Repeat Hydrography started by the research vessel MIRAI on a world cruise in the Southern Hemisphere. (Japan Marine Science and Technology Center (the current JAMSTEC), Japan)			2003 The G8 Summit (Evian, France) was held The First Earth Observation Summit (Washington, D.C., U.S.A) was held.
				2004 Tomakomai Flux Research Site, Hokkaido, Japan was badly damaged due to a typhoon. Observations restarted on a smaller scale in 2006. (NIES, Japan)		2004 The Second Earth Observation Summit (Tokyo, Japan) was held.
	2005 Continuous observations by commercial airliners around the world started as a Comprehensive Observation Network for Trace gases by Airliner (CONTRAIL) project. (NIES, MRI and others, Japan).					2005 The Third Earth Observation Summit (Brussels, Belgium) was held The Group on Earth Observations (GEO) was established.
			2006 Observations of pCO2 by cargo vessels started on the seaways between Australia and Japan. (NIES, Japan)	2006 Observations started at Fuji Hokuroku Flux Observation Site, Yamanashi, Japan. (NIES, Japan)		2006 The Office for Coordination of Climate Change Observation (OCCCO) was established to support the activities of the Japanese Alliance for Climate Change Observation (JACCO), supported by the Ministry of the Environment (MOE) and JMA.
		2007 Observations by cargo vessels started on the seaways off the coast of Southeast Asia. (NIES, Japan)				2007 The IPCC Fourth Assessment Report was published. The Fourth Earth Observation Summit (Cape town, South Africa) was held.
	2009 The Greenhouse gases Observing Satellite (GOSAT) was launched to monitor CO2 and methane concentrations. (NIES, JAXA and MOE, Japan)