Source: Canadian Geographic.
A new paper in PLOS One presents compelling evidence that a comet exploding in Earth’s atmosphere around 13,000 years ago played a major role in the extinction of megafauna such as mammoths and mastodons across Eurasia and North America, and in extinguishing the Clovis Culture, the archaeological sites of which provided the evidence for the impact. The study was led by James Kennett, Professor at University of California, Santa Barbara, working with an international team of collaborators.
The findings cut directly across a familiar creationist trope: the claim that Earth is “finely tuned” to be a benign and stable haven, perfectly suited for human life. This notion, often promoted by parochial American creationists, quietly assumes that the wider world is a trivial backdrop where nothing of consequence ever happens. It ignores the obvious realities of earthquakes, floods, famines, volcanic eruptions and climate shocks—realities that dominate both human history and the deep geological record.
That record tells a very different story. Earth’s past is marked by repeated catastrophes, ranging from abrupt climate shifts to mass extinctions, many triggered by astronomical or geological events. Impacts from space, massive volcanism, plate tectonics and cascading ecosystem failures have repeatedly reshaped life on this planet. Far from being a delicately balanced paradise, Earth is a dynamic and often hostile environment in which survival has always depended on adaptation—and, frequently, sheer luck.
































