I m inquiring about a possible shift of the delta 13C of atmospheric CO2
correlated to its increasing concentration during the last century, and
especially during the post-industrial era.
I know some experiments have been made with gases contained in ice cores,
lavas or tree rings.
So I would like to know if anyone could help me getting references.
Laboratoire de Geochimie des Isotopes Stables
Universite Paris 7-Denis Diderot
4, place Jussieu
75252 Paris Cedex 05
Tel. 44 27 60 88
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