Editorial
Marine Photosynthesis and Oceanic pH: What's the connection between the two? ... and why is it important?

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from Marcacocha Lake, South Central Andes, Peru.

Subject Index Summary
Streamflow (Natural Variability - North America): Have the supposedly "unprecedented" increases in air temperature and atmospheric CO2 concentration of the past century led to equally unprecedented changes in streamflow characteristics throughout North America?

Journal Reviews
Global Warming and Climate Variability: How does the former affect the latter?

A Record of Millennial-Scale Climate Variability from Northernmost Europe: Does it reveal the existence of the major cold and warm periods of the past two millennia that the world's climate alarmists refuse to recognize?

Impacts of Atmospheric CO2 Enrichment and Global Warming on Semiarid Grassland Ecosystems: Are they horrendously negative or tremendously positive? ... or do they lie somewhere in between?

The Variable Response of Rice Cultivars to Atmospheric CO2 Enrichment: Just how variable is it? ... and what are the implications of the results?

Effects of Elevated CO2 on Growth Responses of Soybeans to High Temperature and UV-B Radiation: To what extent can atmospheric CO2 enrichment compensate for the deleterious effects of global warming and increased ultraviolet-B radiation in soybeans?