The cycling of carbon on Earth exerts a fundamental influence upon the greenhouse gas
content of the atmosphere, and hence global climate over millennia. Until recently, ice …

The emergence of low-frequency, high-amplitude, quasi-periodic (∼ 100-kyr) glacial
variability during the middle Pleistocene in the absence of any significant change in orbital …

The growth and reduction of Northern Hemisphere ice sheets over the past million years is
dominated by an approximately 100,000-year periodicity and a sawtooth pattern,(gradual …

The surface of ice exhibits the swath of phase-transition phenomena common to all
materials and as such it acts as an ideal test bed of both theory and experiment. It is readily …

Abstract The Mid‐Pleistocene Transition (MPT), where the Pleistocene glacial cycles
changed from 41 to∼ 100 kyr periodicity, is one of the most intriguing unsolved issues in the …

Over geologic timescales, CO2 is emitted from the Earth's interior and is removed from the
atmosphere by silicate rock weathering and organic carbon burial. This balance is thought to …

The onset of major glaciations in the Northern Hemisphere about 2.7 million years ago was
most probably induced by climate cooling during the late Pliocene epoch,. These …

Heinrich events are well documented for the last glaciation, but little is known about their
occurrence in older glacial periods of the Pleistocene. Here we report scanning XRF and …

Abstract The 100,000-year timescale in the glacial/interglacial cycles of the late Pleistocene
epoch (the past∼ 700,000 years) is commonly attributed to control by variations in the …

As the planet cooled from peak warmth in the early Cenozoic, extensive Northern
Hemisphere ice sheets developed by 2.6 Ma ago, leading to changes in the circulation of …