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Global Average Temperature
at the Earth's Surface and
Atmospheric Concentrations of Carbon Dioxide, 1950-2001
For monthly global temperature data from 1867, see
http://www.giss.nasa.gov/data/update/gistemp/GLB.Ts.txt.
For global atmospheric carbon dioxide concentrations
from 1958, see
http://cdiac.esd.ornl.gov/ftp/ndp001/maunaloa.co2.
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