A series of publications purport to provide evidence that the Earth was subjected to an
extraterrestrial event or events at∼ 12.9 ka creating an environmental cataclysm and the …

Interdisciplinary study of coastal archaeological sites provides a wealth of information on the
ecology and evolution of ancient marine animal populations, the structure of past marine …

Three archaeological sites on California's Channel Islands show that Paleoindians relied
heavily on marine resources. The Paleocoastal sites, dated between~ 12,200 and 11,200 …

It is widely accepted, based on data from the last few decades and on model simulations,
that anthropogenic climate change will cause increased fire activity. However, less attention …

The new revised fifth edition of Natural Hazards remains the go-to introductory-level survey
intended for university and college courses that are concerned with earth processes that …

The prehistoric establishment and expansion of permanent settlements on the Northern
Channel Islands of southern California generally follows a pattern predicted by the …

The late Pleistocene witnessed the extinction of 35 genera of North American mammals. The
last appearance dates of 16 of these genera securely fall between 12,000 and 10,000 …

Airbursts/impacts by a fragmented comet or asteroid have been proposed at the Younger
Dryas onset (12.80±0.15 ka) based on identification of an assemblage of impact-related …

The Younger Dryas (YD) impact hypothesis is a recent theory that suggests that a cometary
or meteoritic body or bodies hit and/or exploded over North America 12,900 years ago …

Archaeologists increasingly examine summed probability distributions of radiocarbon dates
to search for temporal trends in ancient human populations, including early North American …