Several suggested topics for presentations and discussions are given below. These topics are based on the Recommendations from the 12^th Experts Meeting, new developments, and suggestions from colleagues. We encourage presentations on these topics. We also encourage you to submit topics that you feel are important, but are not on this list. We will update this page as needed.

• Handling of calibration gases
• Protocols
• Fractionation
• Drifts
• Stable isotope calibration issues
• CO₂-in-air standards
• CO₂ from carbonates
• CLASSIC cylinders
  
• Equilibration of CO₂-in-air with well characterized H₂O (d¹⁸O)
• Low cost, robust CO₂ measurement systems
• Existing systems
• Systems under development
• Recommended design features and quality control to ensure maximum value and usefulness of measurements
• Intercomparison activities (including CO₂, CH₄, N₂O, CO, isotopes, O₂/N₂)
• Status, results, lessons learned
• Round robins (CO₂, isotopes, O₂/N₂)
• ICPs
• Sausage flasks
• Super site
• ¹⁴C
• Reports from Central Calibration Laboratories (CCL)
• CO₂, CH₄, CO, N₂O, SF₆
• Measurement strategies
• North American Carbon Project (NACP)
• CARBOEUROPE
• Tall towers
• Aircraft
• Data management
• WDCGG
• Cooperative data products
• Recommendations