A note in return...
I was NOT saying that the results of a full scale nuclear war would be equivalent to the asteroid that wiped out the dinosaurs.... But In our world as it is today billions would die...
a 10 degree drop would lead to mass starvation...
Tom pointed out we have had nuclear tests, fact is they were largely in the desert, and underground...
Thousands of burning cities and forests would be very different...
and this isnt even addressing the effects to our infrastructure and the many millions that die as a result!
It would send us back a long long way...