Editorial
Real-World Growth Response of Ponderosa Pines to Post-1950 Atmospheric CO2 Enrichment: Where has it potentially been detected? And how strong is the evidence for it?

Medieval Warm Period Record of the Week
This issue's Level 2 Medieval Warm Period Record of the Week is from the Lake Sugann, located in the northeastern region of the Tibetan Plateau.  To access the entire Medieval Warm Period Project's database, click here.

Subject Index Summary
Medieval Warm Period (Solar Influence - Temperature): Was there a solar-induced Medieval Warm Period that was as warm as (or even warmer than) the Current Warm Period?

Journal Reviews
Sea Surface Temperatures and Atlantic Hurricanes: Do Atlantic basin tropical cyclones become more severe as the globe warms and sea surface temperatures rise?

Effects of Antarctic Cooling on Diatoms in Glacial Meltwater Streams: What are they? Why should we be worried about them? And what can be done about the situation?

Effect of Global Warming on Winter Forest-Soil Respiration: Do rising temperatures stimulate or stifle soil respiration in montane forests in winter?

Nitrogen Mineralization in the Long-Term Swiss FACE Study: Has it declined over time, reducing the strength of the aerial CO2 fertilization effect, as so many pessimists have long declared it would?

Prospects for Carbon Sequestration in Chaparral Ecosystems: Is there much hope for significant carbon sequestration in the world's nitrogen-limited and arid-region shrublands?