Editorial
Ocean Acidification: How Bad Can it Get?: The IPCC overdoes it again.

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from Egelsee Bog, Central Switzerland.

Subject Index Summary
Little Ice Age (Northern Hemisphere): Why are we concerned about it? ... and how big a deal is our concern?

Journal Reviews
Windstorms of Europe: How have they varied over the past four decades of supposedly unprecedented global warming?

The Medieval Warmth of China: How did it compare with that of the late 20th century?

Effects of Way-Above-Average Warming on Tasmanian Reefs: Are the effects also way-above-average?

Global Warming-Induced Hybridization in Flying Squirrels: It represents perhaps the first real-world demonstration of an oft-hypothesized -- and now-proven -- method of successfully coping with a major climate-change challenge.

Effects of Elevated CO2 on a Chesapeake Bay (USA) Wetland: One of the world's longest atmospheric CO2 enrichment studies ever conducted produces some results that have far-reaching implications for coastal hydrology.