Article Dinosaur-killing asteroid did not trigger a long 'nuclear winter' after all

[C C]

https://www.livescience.com/animals/dino...-after-all

EXCERPTS: The asteroid that wiped out the dinosaurs did not trigger a long-lasting impact winter, scientists have found — a discovery that raises new questions about what happened on Earth just after it hit.

[...] how exactly it killed the dinosaurs is a bit of a mystery — after all, they weren't congregated beneath the asteroid, waiting to be squashed. For decades, scientists speculated that the impact tossed so much dust and dirt into the atmosphere that it triggered an "impact winter" (similar to a nuclear winter) — a period of prolonged cooling during which global temperatures plummeted.

However, a study published March 22 in the journal Geology tells a different story.

"We found that there was no evidence for the 'nuclear winter,'" Lauren O'Connor, a geoscientist at Utrecht University in the Netherlands and first author of the study, told Live Science in an email. "At least, not in the resolution of our study," which would have detected temperature declines spanning 1,000 years or more... (MORE - details)

[Magical Realist]

how exactly it killed the dinosaurs is a bit of a mystery — after all, they weren't congregated beneath the asteroid, waiting to be squashed. For decades, scientists speculated that the impact tossed so much dust and dirt into the atmosphere that it triggered an "impact winter" (similar to a nuclear winter) — a period of prolonged cooling during which global temperatures plummeted.

Maybe there was so much dust and ash in the air it caused the dinosaurs to die from breathing related problems. Maybe there were related geological eruptions that also contributed to this.