The Last Glacial Termination

  title={The Last Glacial Termination},
  author={George H. Denton and R. F. Anderson and J. R. Toggweiler and Richard Lawrence Edwards and Joerg M. Schaefer and Aaron E. Putnam},
  pages={1652 - 1656}
Warming Up For the past half-million years, our planet has passed through a cycle of glaciation and deglaciation every 100,000 years or so. Each of these cycles consists of a long and irregular period of cooling and ice sheet growth, followed by a termination—a period of rapid warming and ice sheet decay—that precedes a relatively short warm interval. But what causes glacial terminations? Denton et al. (p. 1652) review the field and propose a chain of events that may explain the hows and whys… 

The Southern Glacial Maximum 65,000 years ago and its Unfinished Termination

Climate science: Timing is everything during deglaciations

  • K. Billups
  • Environmental Science, Geography
  • 2015
New and existing data are used to demonstrate a link, within uncertainties, between Heinrich Stadial 11 (HS11) — a prominent Northern Hemisphere cold event — and the timing of peak sea level rise during T-II, consistent with the idea of a bipolar seesaw that would probably have promoted Antarctic ice sheet melting.

Two-phase change in CO2, Antarctic temperature and global climate during Termination II

The end of the Last Glacial Maximum (Termination I), roughly 20 thousand years ago (ka), was marked by cooling in the Northern Hemisphere, a weakening of the Asian monsoon, a rise in atmospheric CO2

Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition

An assessment of 11 radiometrically dated terminations spanning the past million years suggests that obliquity exerted a persistent influence on not only their initiation but also their duration, suggesting pacing by Earth’s climatic precession.

Interglacial Hydroclimate in the Tropical West Pacific Through the Late Pleistocene

A stalagmite-based reconstruction of tropical West Pacific hydroclimate from 570 to 210 ka suggests that tropical hydroclimate was insensitive to interglacial differences in Pco2 and high-latitude temperature, implying that the tropical convective heat engine can either stabilize or amplify global climate change, depending on the nature of the climate forcing.

Orbital control of western North America atmospheric circulation and climate over two glacial cycles.

A 175,000 year oxygen isotope record from precisely-dated speleothems is presented that documents a previously unrecognized and highly sensitive link between Great Basin climate and orbital forcing.

Orbital forcing of the East Antarctic ice sheet during the Pliocene and Early Pleistocene

The Pliocene and Early Pleistocene, between 5.3 and 0.8 million years ago, span a transition from a global climate state that was 2‐3 C warmer than present with limited ice sheets in the Northern



Migration of the subtropical front as a modulator of glacial climate

It is shown that the degree of northwards migration of the subtropical front can partially decouple global climate from atmospheric partial pressure of carbon dioxide, and help to resolve the long-standing puzzle of differing glacial amplitudes within a consistent range of atmospheric temperatures.

Insolation changes, ice volumes, and the O18 record in deep‐sea cores

A detailed curve of ice volume versus time is needed in order to test the validity of the hypothesis that changes in the earth's orbital parameters are the cause of oscillations in Pleistocene

Northern Hemisphere forcing of climatic cycles in Antarctica over the past 360,000 years

The results indicate that orbital-scale Antarctic climate change lags Northern Hemisphere insolation by a few millennia, and that the increases in Antarctic temperature and atmospheric carbon dioxide concentration during the last four terminations occurred within the rising phase of Northern Hemisphere summer insolation.

The timing of major climate terminations

  • M. Raymo
  • Environmental Science, Geography
  • 1997
A simple, untuned “constant sedimentation rate” timescale developed using three radiometric age constraints and eleven δ18O records longer than 0.8 Myr provides strong support for the validity of the


Hughen et al. [1998] have documented that during the first 200 years of Younger Dryas time the 14C content of atmospheric CO2 increased by ∼50‰ and that during the remainder of this

What drives glacial cycles

The Milankovitch theory advocates that the glacial cycles have three components: the tilt of the earth's spin axis; the shape of the earth's orbit; and the interaction between the tilt and the

Long-term sea surface temperature and climate change in the Australian–New Zealand region

[1] We compile and compare data for the last 150,000 years from four deep-sea cores in the midlatitude zone of the Southern Hemisphere. We recalculate sea surface temperature estimates derived from

Timing of abrupt climate change at the end of the Younger Dryas interval from thermally fractionated gases in polar ice

Rapid temperature change fractionates gas isotopes in unconsolidated snow, producing a signal that is preserved in trapped air bubbles as the snow forms ice. The fractionation of nitrogen and argon