NOTICE (August 2016): 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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Welcome to the redesigned CDIAC website. We hope that you will find the new design attractive, intuitive, and helpful in finding climate change data of interest.

The new design has:

  • A more modern look and feel
  • More intuitive navigation to enable quicker data discovery
  • Support for additional viewing platforms (e.g., mobile devices and tablets)
  • More apparent and distinct presentation/organization of CDIAC data holdings and CDIAC-supported programmatic efforts

Note that the content and functionality of many second-level pages (e.g., graphical user interfaces) are largely unchanged. The site redesign does not affect the observing program websites that are linked to CDIAC (i.e., AmeriFlux, Ocean CO2, FACE, HIPPO, NARSTO, NGEE-Arctic, and SPRUCE). Please contact us if you have any difficulty with the site, and, as always, we welcome your comments and questions.