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Defining the Anthropocene
Time is divided by geologists according to marked shifts in Earth’s state. Recent global environmental changes suggest that Earth may have entered a new human-dominated geological epoch, theExpand
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Managing the health effects of climate change
www.thelancet.com Vol 373 May 16, 2009 1693 Anthony Costello, Mustafa Abbas, Adriana Allen, Sarah Ball, Sarah Bell, Richard Bellamy, Sharon Friel, Nora Groce, Anne Johnson, Maria Kett, Maria Lee,Expand
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Late Cenozoic Moisture History of East Africa
Lake sediments in 10 Ethiopian, Kenyan, and Tanzanian rift basins suggest that there were three humid periods at 2.7 to 2.5 million years ago (Ma), 1.9 to 1.7 Ma, and 1.1 to 0.9 Ma, superimposed onExpand
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North Pacific seasonality and the glaciation of North America 2.7 million years ago
In the context of gradual Cenozoic cooling, the timing of the onset of significant Northern Hemisphere glaciation 2.7 million years ago is consistent with Milankovitch's orbital theory, which positedExpand
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The contribution of orbital forcing to the progressive intensification of Northern Hemisphere glaciation
In this study, we reconstruct the timing of the onset of Northern Hemisphere glaciation. This began in the late Miocene with a significant build-up of ice on Southern Greenland. However, progressiveExpand
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The progressive intensification of northern hemisphere glaciation as seen from the North Pacific
Ocean Drilling Project (ODP) site 882 (50°22′N, 167°36′E) provides the first high-resolution GRAPE density, magnetic susceptibility, carbonate, opal and foraminifera (planktonic and benthic) stableExpand
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Mid-Pleistocene revolution and the ‘eccentricity myth’
Abstract The mid-Pleistocene revolution (MPR) is the term used to describe the transition between 41 ka and 100 ka glacial-interglacial cycles which occurred about one million years ago. DespiteExpand
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Tectonics, orbital forcing, global climate change, and human evolution in Africa: introduction to the African paleoclimate special volume.
The late Cenozoic climate of Africa is a critical component for understanding human evolution. African climate is controlled by major tectonic changes, global climate transitions, and localExpand
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Linking continental-slope failures and climate change: Testing the clathrate gun hypothesis
It has been suggested that the release of clathrates rather than expansion of wetlands is the primary cause of the rapid increases observed in the ice-core atmospheric methane record during theExpand
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High- and low-latitude forcing of Plio-Pleistocene East African climate and human evolution.
The late Cenozoic climate of East Africa is punctuated by episodes of short, alternating periods of extreme wetness and aridity, superimposed on a regime of subdued moisture availability exhibiting aExpand
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