Department of Geosciences, Terrestrial Paleoclimatology, Baylor University, Waco, TX, United States, 2 Isotopologue Paleosciences Laboratory, Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, United States, Max Planck Institute for the Science of Human History, Jena, Germany, Department of Anthropology, Harvard University, Cambridge, MA, United States, Natur...

The need to understand natural climate variability and improve weather forecasts gave birth the first tree-ring reconstructions more than a century ago in Europe North America, still defines central motivation for modern paleoclimatology: learning from past prepare future.

Paleoclimatology requires the analysis of paleo time-series, obtained from a number of independent techniques and instruments, produced by several researchers and/or laboratories. Analytical reasoning techniques that combine the judgment of paleoceanographers with automated reasoning techniques are needed to gain deep insights about commplex climatic phenomena. This paper presents an interactiv...

Glacial polish, grooves, and striations discovered at an elevation of 1370 meters in the headwaters of Boone Fork on Grandfather Mountain, North Carolina, indicate the former, existence of alpine glaciation at a latitude of 36 degrees 07'N. The Boone Fork glacier was located 890 kilometers south of the previously recognized southern limit of alpine glaciation in the Appalachian Mountains, and 3...

Weathering is a complex process comprising physical disaggregation, chemical and biological decomposition of rocks and minerals transforming complex structure minerals in simpler ones. Hydrolysis of silicates is perhaps the most important process but associated certainly to biological weathering. It is discussed the role ofwaters: activities/concentrations of chemical species, pH, Eh, importanc...

The role of the tropics in triggering, transmitting, and amplifying interhemispheric climate signals remains a key debate in paleoclimatology. Tropical glacier fluctuations provide important insight on regional paleoclimatic trends and forcings, but robust chronologies are scarce. Here, we report precise moraine ages from the Cordillera Vilcabamba (13 degrees 20'S) of southern Peru that indicat...