Editorial
The Future of Forest Isoprene Emissions: What is it? ... and why should we care?

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from Loch Sunart, Northwest Scotland Coast.

Subject Index Summary
Roman Warm Period (Asia): Why are we concerned about the climatic state of Asia some two millennia ago?

Journal Reviews
Alaskan and Northwest Canadian Glaciers: New data reduce prior estimates of their past half-century melt rates.

Floods of the Guadalentin River, Southeast Spain: How have they varied over the past millennium?

The Future of East Africa in a CO2-Enriched and Warmer World: It's not as bad as you might think. In fact, it's not even bad at all. In fact, it's looking good!

High Northern Latitude Carbon Balance Over the 21st Century: Will it be positive, extracting carbon from the atmosphere and reducing global warming? ... or will it be negative, releasing carbon to the atmosphere and thereby enhancing global warming?

Orchid Responses to Super-High Atmospheric CO2 Enrichment: Are the CO2-induced increases in plant growth equally super high?