Deglaciation-Induced Climate Variability

Global climate evolution during the last deglaciation.

Deciphering the evolution of global climate from the end of the Last Glacial Maximum approximately 19 ka to the early Holocene 11 ka presents an outstanding opportunity for understanding the transient response of Earth's climate system to external and internal forcings. During this interval of global warming, the decay of ice sheets caused global mean sea level to rise by approximately 80 m; te...

Climate bifurcation during the last deglaciation

Climate bifurcation during the last deglaciation T. M. Lenton, V. N. Livina, V. Dakos, and M. Scheffer College of Life and Environmental Sciences, University of Exeter, Hatherly Laboratories, Prince of Wales Road, Exeter EX4 4PS, UK School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK Aquatic Ecology and Water Quality Management, Wageningen University, Wageningen, Th...

C02-Forced Climate and Vegetation Instability During Late Paleozoic Deglaciation

Deglaciation and Holocene climate change in the western Peruvian Andes

Pollen, charcoal, magnetic susceptibility, and bulk density data provide the first paleoecological record spanning the last 33,000 years from the western cordillera of the Peruvian Andes. Sparse super-puna vegetation existed before 30,000 cal yr B.P. around Lake Compuerta (3950 m elevation), prior to a sedimentary hiatus that lasted until c. 16,200 cal yr B.P. When sedimentation resumed, a glac...

Climate Change During the Last Deglaciation in Antarctica

Greenland ice core records provide clear evidence of rapid changes in climate in a variety of climate indicators. In this work, rapid climate change events in the Northern and Southern hemispheres are compared on the basis of an examination of changes in atmospheric circulation developed from two ice cores. High-resolution glaciochemical series, covering the period 10,000 to 16,000 years ago, f...