Asteroid Impact's Global Firestorm: New Insights into Dinosaur Extinction
A new study led by Brandon Johnson at Purdue University reveals that the asteroid impact 66 million years ago caused a global firestorm, contributing to the extinction of the dinosaurs. The research, published in the Journal of Geophysical Research: Biogeosciences, indicates that the impact vaporized a significant amount of rock, creating a dust cloud that enveloped the planet. This cloud trapped heat, leading to intense thermal radiation and widespread fires. The study challenges previous theories that focused on a 'nuclear winter' effect, suggesting instead that the immediate thermal impact played a crucial role in the mass extinction.