Not off hand but the idea is the amount needed to cause one is not as low as previously stated (the 3 large scale bombs being enough was likely off by an order of magnitude).
The fear of instant nuclear winter was likely more cold war scare then sound science, but the chance of nuclear winter is still there. We just don’t know exactly how many nukes and where would kick one off.
Not off hand but the idea is the amount needed to cause one is not as low as previously stated (the 3 large scale bombs being enough was likely off by an order of magnitude).
The fear of instant nuclear winter was likely more cold war scare then sound science, but the chance of nuclear winter is still there. We just don’t know exactly how many nukes and where would kick one off.