Editorial
Coral Calcification and Photosynthesis in a CO2-Enriched World of the Future: Will the two essential processes be reduced or enhanced?

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from an Alpine Lake in the Southern Austrian Alps, Austria.

Subject Index Summary
Trees (Types - Pine: Ponderosa): How do Ponderosa pine trees respond to increasing atmospheric CO2 concentrations?

Journal Reviews
North Atlantic Tropical Cyclones: How have they changed over the last four decades?

The Cosmic Ray-Climate Connection: How well established is it?

A Millennial Thermal History of Lower Murray Lake, Canada: What important knowledge does it reveal?

Effect of Elevated CO2 on Leaf Senescence of Populus Trees: Does it make leaves "dry and die" earlier or later? And of what significance is the phenomenon?

Fine-Roots of Loblolly Pines in the Duke Forest FACE Study: How has eight years of atmospheric CO2 enrichment impacted their yearly growth?