J. R. Carroll wrote:
"Offbreed" wrote in message

Lots of deaths, yes. Total wipeout? No. The earth is too big, and there
are too many people ready to use their ingenuity to stay alive.


That's what the Dinosaurs said isn't it?

So what? That meteor was not man, or dinosaur, made.

http://www.edwardmuller.com/right17.htm

Little Boy, 13 kilotons.
Fat man, 20 kilotons.
The Tanguska Event, 10 megatons
The Bravo test, 15 megatons
One pound of antimatter 16 megatons
Mount St. Helen May 18, 1980. 24 megatons
Tsar Bomba, 50 megatons
The third 1883 eruption of Krakatoa 150 megatons
World War III, 10,000 megatons
"Dinosaur Killer" 100,000,000 megatons or 10^8 megatons


"World War III, computed as the simultaneous explosion of all known
nuclear devices (about 15,000 today)"