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 …

Abstract Firestone et al., 2007, PNAS 104 (41): 16,016–16,021, proposed that a major
cosmic impact, circa 10,835 cal. BCE, triggered the Younger Dryas (YD) climate shift along …

Many countries around the world are planning to reach 100% renewable energy use by
2050. In this context and due to the recent sharp increase in RE utilization in the global …

The disappearance of many North American megafauna at the end of the Pleistocene is a
contentious topic. While the proposed causes for megafaunal extinction are varied, most …

We present evidence that in~ 1650 BCE (~ 3600 years ago), a cosmic airburst destroyed
Tall el-Hammam, a Middle-Bronze-Age city in the southern Jordan Valley northeast of the …

Palaeoecological records suggest that humans have been in the Andes since at least 14
000 years ago. Early human impacts on Andean ecosystems included an increase in fire …

We reject the claim of Holliday et al.(2023) that they have “comprehensively refuted” the
Younger Dryas impact hypothesis (YDIH). Scores of peer-reviewed articles in dozens of …

We examine the temporal and spatial structure of wildfires and rates of vegetation change in
the Pacific sector of northwestern Patagonia (40°-44° S) over the last∼ 18,000 years …

Abstract At Abu Hureyra (AH), Syria, the 12,800-year-old Younger Dryas boundary layer
(YDB) contains peak abundances in meltglass, nanodiamonds, microspherules, and …

The settlement of the Americas has been the focus of incessant debate for more than 100
years, and open questions regarding the timing and spatial patterns of colonization still …