Material in this section originates from the following category 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

Hydrologic Variations of South America's Lake Titicaca

Solar-Climate Links Discerned From Tree-Ring Periodicities in Brazil and Chile

A Solar-Influenced Little Ice Age and Medieval Warm Period in Tropical Venezuela