Editorial
Coral Reef Degradation: Anthropogenic-Induced or Natural?: The differentiation is not as straightforward as one might think.

Journal Reviews
Droughts of the Northwestern U.S. Snake River Basin: How have they varied over the past four centuries?

A Century of Drought in Southern South America: Did the lower third of the continent get wetter or drier over the course of the 20th century?

Breeding and Feeding Cycles in Great and Blue Tits: Are they becoming less synchronized in response to global warming?

Great Cormorants on Greenland: They seem to be taking a liking to warmer weather.

Vascular Plant Richness on Mountain Summits of Southern Norway: How has it changed since the early 1970s?

More CO2 Enrichment Work on Wine Grapes: A little CO2 seems to help a whole lot.

Medieval Warm Period Project
This issue's Medieval Warm Period Record comes from Moose Lake, Wrangell-St. Elias National Park and Preserve, South-Central Alaska, USA.

Ocean Acidification Database
The latest addition of peer-reviewed data archived to our database of marine organism responses to atmospheric CO2 enrichment is Hard Clam [Mercenaria mercenaria]. To access the entire database, click here.