Atmospheric CO2 back to 650,000 BP

New data from:

www.ncdc.noaa.gov/paleo/icecore/antarctica/domec/domec_ep...

Siegenthaler et al. 2005 CO2 Data for 650 - 390 KYrBP in text or Microsoft Excel format.

ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc-co2-650k-390k.xls

Done