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 …

Reconstructing climates of the past relies on a variety of evidence from a large number of
sites to capture the varied features of climate and the spatial heterogeneity of climate …

Wildfires are an integral part of most terrestrial ecosystems. Paleofire records composed of
charcoal, soot, and other combustion products deposited in lake and marine sediments …

Wildfire plays an important role in ecosystems of the Pacific Northwest, but past relationships
among fire, climate, and human actions remain unclear. A multiscale analysis of thirty-four …

In unglaciated terrain, the imprint of past glacial periods is difficult to discern. The
topographic signature of periglacial processes, such as solifluction lobes, may be erased or …

Abstract In eastern Beringia (unglaciated Alaska and western Yukon), the Pleistocene-
Holocene transition was characterised by rapid changes in plant, insect and mammal …

Lake sediment oxygen isotope records (calcium carbonate-δ 18 O) in the western North
American Cordillera developed during the past decade provide substantial evidence of …

Despite substantial interest in coevolution's role in diversification, examples of coevolution
contributing to speciation have been elusive. Here, we build upon past studies that have …

Oxygen isotope (δ 18 O) measurements of authigenic carbonate from Cleland Lake
(southeastern British Columbia), Paradise Lake (central British Columbia), and Lime Lake …

Abstract The arid southwestern United States is susceptible to sustained droughts that
impact water resources and economic activity for millions of residents. Previous work has not …