Editorial
Late 20th-Century Acceleration in the Growth of Greek Fir Trees: Was it caused by the rising atmospheric CO2 concentration?

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from the Tornetrask Area, Swedish Lapland.

Subject Index Summary
Transgenic Plants: How are they affected by atmospheric CO2 enrichment? ... and how might they better cope with global warming?

Journal Reviews
Atmospheric Methane on the Rise Again?: It remains to be seen.

Tropical Atlantic and Caribbean Cyclones: How have their numbers varied over the past three centuries?

The Medieval Warm Period in Canada's Columbia Icefield: When did it occur? ... and how hot did it get?

Water Relations of Aspen and Aspen-Birch Forests Exposed to Elevated CO2 and Ozone: How are they affected by the two trace gases? ... and which effect predominates?

How Does Climate Change Affect the Ranges of European Birds?: A new paper suggests that no one really knows (even though they may think they do).