The graphs shown here are monthly averaged data from the g1301 Picarro Greenhouse Gas Analyser.

The data presented is owned by the Royal Holloway Greenhouse Gas Research team, and therefore any reproduction of this data in any form must be authorised (e mail addresses available through the contacts menu)

CH4 Asc monthly

Monthly methane record from Ascension Island

CO2 Asc monthly

Monthly carbon dioxide record from Ascension Island