Scientists Say: Nuclear War Still Bad.

Scientists at Rutgers University have completed a study on nuclear wars and nuclear winters by "simulating" bomb explosions over major cites. They "simulated" the explosion of 100 nuclear bombs. And hopefully not to their surprise, the nuclear winter afterwards would really suck. Unless you died in the bomb, then the weather would be ok.

They found that the blasts would loft up to 5 million tonnes of black carbon soot into the atmosphere, lowering global temperatures by 1.4 °C. Growing seasons in the middle latitudes would be shortened and in some cases fail entirely. "By explaining the consequences to the world, we hope nothing like this will ever happen," says Robock.

Yes, thank you for discovering that a nuclear war would really suck for everyone.
'Nuclear winter' is still a threat to be avoided