Material in this section originates from the following categories in our Subject Index:

Material preceded by an asterisk (*) was posted after this subject summary was written and therefore is not included in the summary.  This material will be integrated into the summary at a later date.

Summary

* -- Plant Stomatal Response to Volcanogenic SO2

* -- Plant Response to CO2 Escaping from Fractures and Faults of Active Volcanic Systems

Volcanic Eruptions and Forest Productivity

Interannual Fluctuations of the Air's CO2 Concentration

Diffuse Light: A Powerful Promoter of Photosynthesis

Yet Another Biophysical Feedback Mechanism that May Help to Protect the Planet Against Deleterious CO2-Induced Global Warming