Editorial
Rising Atmospheric CO2 Concentrations Increase Soil Carbon Contents: What we have long believed, but many have long doubted, is now being realized to be correct.

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week is from Lake Baikal, Russia.  To access the entire Medieval Warm Period Project's database, click here.

Subject Index Summary

Agriculture (Species - Sorghum: Photosynthesis): Would photosynthesis in sorghum be expected to increase much in response to rising atmospheric CO2 concentrations?

Journal Reviews
Extratropical North Atlantic and North Pacific Sea Level Trends: 1993-2003: Are they nice steady functions of rising global temperatures?

Freshening of the Kara Sea: A Sign of CO2-Induced Global Warming?: Freshening of Arctic surface waters is supposed to be "an alarming signal for global change."  Eight scientists from the United Kingdom, Germany and Russia look for it in the Kara Sea.

Using Borehole Temperatures to Reconstruct Earth's Thermal History: Is the technique reliable?

Effects of an Urban-Rural CO2/Temperature Gradient on Plant Productivity: The overlapping of urban heat islands and urban CO2 domes provides a natural laboratory for investigating the effects of concomitant increases in atmospheric CO2 and temperature on plant growth and development.

Rising Atmospheric CO2 Concentrations Increase Soil Nitrogen Contents: What we have long believed, but many have long doubted, is now being realized to be correct.