Editorial
Old-Growth Forests of Tropical Africa: Are they feeling their age? ... or are they catching their second wind?

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from Guaymas Basin, Gulf of California, Mexico.

Subject Index Summary
Solar Influence on Climate (Temperature: Europe): The sun is no respecter of continents when it comes to forcing global temperature changes.

Journal Reviews
Damaging Tropical Cyclones of China: How did they vary between 1983 and 2006?

Climate and Beavers in Yellowstone National Park (USA): How are they related? ... and what do they reveal about the region's past?

Reconstructing Seawater pH in the South China Sea: How is it affected by atmospheric CO2 enrichment?

CO2 Enrichment at Sea: How does it affect the photosynthesis and growth of marine micro- and macro-algae?

N2 and CO2 Fixation in a Unicellular Marine Cyanobacterium: How are these important life processes affected by elevated atmospheric CO2 concentrations? ... and what do they imply about the future of earth's marine life?