1. The free, open, and timely exchange of data should be a fundamental U.S. governmental policy and, to the fullest extent possible, should be enforced throughout every federal agency that holds climate-relevant data. Adherence to this principle should be promoted more effectively by the U.S. government in its international agreements, with particular attention given to implementation.
  2. Vastly improved documentation of all changes in equipment, operations, and site factors in operational observing systems are required to build confidence in the time series of decadal-to-centennial climate change.
  3. Establish and maintain strong, robust links between operational systems managers and the climate data users.
  4. Because U.S. economic and social interests depend on knowing the climate globally, U.S. agencies should pursue international cooperation in climate observation and monitoring through international mechanisms. USAID funds may be one vehicle to ensure critical observations in developing countries.

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