Analysis by Michael Reilly
Sat Aug 28, 2010 09:33 AM ET
"Seems like an easy one to answer: an asteroid around six miles wide slammed into the Yucatan Peninsula. Continent-wide firestorms, planet-enshrouding dust cloud, massive plant death, toxic ozone, carbon monoxide poisoning ... and that's it: one resounding mass extinction all wrapped up in a pretty, hellish package and explained by a big hole in southeastern Mexico, right?"
Interesting take on extinction. This seems to indicate a more optimistic outcome if/when the next big asteroid hits the planet.