Editorial
Upper-Ocean Heat Content Variability: 1956-2003: What was it like?  And what does the result imply about the roles of anthropogenic forcing and other sources of variability within earth's climate system?

Medieval Warm Period Record of the Week
This issue's Level 3 Medieval Warm Period Record of the Week is from Yakushima Island, Southern Japan.  To access the entire Medieval Warm Period Project's database, click here.

Subject Index Summary
Agriculture (Species - Sorghum: Biomass): Sorghum biomass production is modestly boosted by atmospheric CO2 enrichment under normal growing conditions, but can be greatly stimulated when environmental conditions are stressful.

Journal Reviews
Sea Level: Is It Rising as a Result of the Melting of Land-Based Glacial Ice?: Climate alarmists say yes.  Real-world data are not so convincing.

Atmospheric CO2 Concentrations of Persistent Cold-Pool Air Over Salt Lake City (Utah, USA) in Winter: How high do they rise?

Another Little Ice Age Fingerprint From Chile: A new study once again signals the global nature of this multi-century cold-Earth episode.

Stomatal Responses of Sweetgum Trees to Elevated CO2: What are they, and how consistent are they?

Spring Barley Growth: Effects of Elevated CO2 vs. Effects of Elevated O3: How do the positive effects of a 75% increase in atmospheric CO2 concentration compare with the negative effects of a 100% increase in atmospheric O3 concentration?