§ Mr. WatsonTo ask the Secretary of State for Environment, Food and Rural Affairs if she will list carbon dioxide level; in the earth's atmosphere for each of the last 10 years. [165256]
§ Mr. MorleyThe table shows atmospheric carbon dioxide (CO2) concentrations in parts per million (ppm) from 1993 to 2002. Average annual data for 2003 are not yet available.
The data presented are from air samples collected at the Mauna Loa Observatory, Hawaii, which is considered one of the most favourable locations in the world for measuring representative concentrations of atmospheric CO2.
Annual atmospheric CO2 (ppm) 1993 357.10 1994 358.86 1995 360.90 1996 362.58 1997 363.84 1998 366.58 1999 368.30 2000 369.47 2001 371.03 2002 373.07