I didn't read the article as making a judgement on whether nuclear weapons are good/bad, but since you asked... At least one study claims a conflict with few a

I didn't read the article as making a judgement on whether nuclear weapons are good/bad, but since you asked... At least one study claims a conflict with few as 100 detonations could result in enough fallout to trigger a 10-year global famine: http://climate.envsci.rutgers.edu/nuclear/ http://climate.envsci.rutgers.edu/nuclear/