Depends on the size and nature of the nuke.
Pure fission bombs have a lower yield, and are "dirty" in terms of radiation
fission-fusion-fission bombs (hydrogen bombs) have a higher yield, but lower radiation. These are the big ones (Tzar)
Then there are the theoretical nukes, like cobalt-60 bomb. The cobalt bomb is designed to maximise radioactive output, with its half life allowing for it to cover massive areas of the world in fallout.
To answer your question: No, one nuke will not destroy the planet. It could flatten a city and cover a continent in fallout though. When considering the circumstances of the use of nuclear weapons, this isirrelevant -in the event of a nucleur war more than one (likely dozens, if not hundreds) are going to be launched.
If theoretical nukes are accounted for, a sizeable cobalt bomb detonation could have world wide effects.
redwolf22
You know too much about nuclear weapons, expect a knock at the door from the friendly men in black wanting a little chat. 
Log in to comment