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Volume 11 Number 38:  17 September 2008

Editorial
Animal Migrations and Climate Change: How has the latter affected the former? ... and what does the answer suggest about the future?

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from the Palpa-Nasca Basin, Northern Atacama Desert, Peru.

Subject Index Summary
West Antarctic Ice Sheet (Dynamics): Is the massive ice repository slip-sliding away, as so many radical environmentalists claim it is?

Journal Reviews
An 800-Year History of Australian Tropical Cyclones: How have they varied over the long term?

Debilitating Drought and the Classic Mayan Collapse: Evidence continues to accumulate for the hydrological manifestation of the Medieval Warm Period in eastern Mesoamerica.

Warming of Antarctic Tundra: How does it impact above- and below-ground ecosystem carbon stocks?

Aerobic Methane Emissions from Terrestrial Plants: Are they real or imaginary?

More on the Role of Earthworms in Sequestering Soil Carbon: Working in the dark -- and beneath our feet -- the lowly creatures are quietly doing their part to mitigate the ongoing rise in the air's CO2 content.