Recent CO2 increases (upper panel: Mauna Loa CO2, monthly means, 1993-2003. Solid line: 13 month running mean. Units ppmv) and change on value 12 months earlier (lower panel; e.g. data plotted at Jan 2001 is Jan 2001 minus Jan 2000).

Data: http://cdiac.esd.ornl.gov/ftp/maunaloa-co2/maunaloa.co2 archive copy at the Wayback Machine

By William M. Connolley in IDL (co2.recent.ch.pro).

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