Evidence for climatic change across the North American Monsoon (NAM) and adjacent
areas is reviewed, drawing on continental and marine records and the application of climate …

Modes of climate variability affect global and regional climates on different spatio-temporal
scales, and they have important impacts on human activities and ecosystems. As these …

Global perspectives on the complexities of environmental change impacts associated with
past and present human activity are needed for the food and water security challenges of the …

Understanding the cumulative impact of natural and human influences on the sensitivity of
channel morphodynamics, a relative measure between the drivers for change and the …

The 4.2 ka event was a period of global drought and climate cooling linked to the
widespread disruption of Neolithic culture. However, the detailed climatic changes during …

Evidence of a multi-centennial scale dry period between∼ 2800 and 1850 cal yr BP is
documented by pollen, mollusks, diatoms, and sediment in spring sediments from …

Many drought indices were proposed to describe drought characteristics, but only few had
considered environmental changes. In an attempt to incorporate climate change into …

The North American monsoon (NAM), an onshore wind shift occurring between July and
September, has evolved in character during the Holocene largely due to changes in …

El Niño has profound influences on ecosystem dynamics. However, we know little about
how it shapes vertebrate faunal community composition over centennial time scales, and …

The hydroclimate of the southwestern United States (US) region changed abruptly during
the latest Pleistocene as the continental ice sheets over North America retreated from their …