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Volume 10 Number 35:  29 August 2007

Editorial
The Plasticity of Plant Strategies for Acquiring Nitrogen: How well equipped are diverse types of plants to tapping into sources of different forms of nitrogen in response to environmental changes that might require their doing so in order to survive?

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from Hudson River Estuary, USA.

Subject Index Summary
Tannins (Oak Trees): Elevated CO2 concentrations and air temperatures tend to increase tannin concentrations in oak tree leaves, leading to positive consequences for man and nature alike.

Journal Reviews
Mid-Holocene Surface Temperatures of the South China Sea: How do they compare with those of the present?

Two Thousand Years of East African Droughts: What do the data reveal about the Roman and Medieval Warm Periods?

The Medieval Warm Period and Little Ice Age in Western Equatorial Africa: What were the two climatic periods' most defining characteristics?

Global Warming, Atmospheric CO2 Increase, and Northeast China's Forest Carbon Stocks: How have northeast China's forests responded to the supposedly unprecedented increases in air temperature and CO2 concentration of the past several years?

Leaf Photosynthetic Rates of Mature Holm Oak Trees Growing in Close Proximity to a Natural CO2 Spring: How do they compare with photosynthetic rates of similar-aged trees growing further away in ambient-CO2 air?