A major puzzle of paleoclimatology is why, after a long interval of cooling climate, each late Quaternary ice age ended with a relatively short warming leg called a termination. We here offer a comprehensive hypothesis of how Earth emerged from the last global ice age. A prerequisite was the growth of very large Northern Hemisphere ice sheets, whose subsequent collapse created stadial condition...

Organisms face continual fluctuations in global climatic processes to which they must adapt or perish. Considering that many species are key habitat formers and energy producers, such responses to climate change can have significant population, community and even ecosystem consequences. Paleo-records of ecosystem responses to past environmental variability have proven invaluable for studying im...

Planktic foraminiferal shell thinning in the Arabian Sea due to anthropogenic ocean acidification? H. de Moel, G. M. Ganssen, F. J. C. Peeters, S. J. A. Jung, G. J. A. Brummer, D. Kroon, and R. E. Zeebe Department of Paleoclimatology and Geomorphology, Vrije Universiteit Amsterdam, de Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands Institute for Environmental Studies, Vrije Universiteit Ams...

Knowledge of age as a function of depth in glacial ice is important for both glaciology and paleoclimatology. For sites near a ridge or dome, an ice flow model together with information on accumulation rate provides a first approximation. If the accumulation rate is high enough, annual layering of isotopes and dust measured in a solid core can provide a precise age vs depth relationship. For So...

The study of climate change is a very important field of science, since life is directly affected by these changes. Many proxies, i.e. data previously preserved within speleothems, sediments, tree rings, corals, etc., have been observed and many theoretical models have been developed in order to gain a comprehensive understanding of past and future climate. Investigating the past climate change...

The characterization of petrified wood provides valuable information about paleoclimatology and geological history helps to reconstruct the past forest flora different parts earth. present study was undertaken evaluate anatomical characteristics fossil Miocene age collected from Manchar Formation exposed at Thano Bula Khan, Sindh, Pakistan. In order carry out a detailed investigation, three-dim...