NOTICE: CDIAC as currently configured and hosted by ORNL will cease operations on September 30, 2017. Data will continue to be available through this portal until that time. Data transition plans are being developed with DOE to ensure preservation and availability beyond 2017.

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This Page Has Been Moved

The new location is: http://cdiac.ornl.gov/epubs/ndp/ushcn/ushcn.html. You will be redirected to this page automatically.