littlebabyjesus
one of Maxwell's demons
Read them more carefully and you find 56% favouring replacing Trident. So there's a soft majority actively in favour of nukes overall, which becomes a soft minority in Scotland, where people are more exercised in their thoughts about it and it has been on the forefront of the political agenda for a while. Making a case and getting things discussed makes a difference to these things.I'm guessing that those numbers will be dismissed because they're inconvenient.
Plus, as ever, you should never just go on one poll (and I'd be saying the same if it were giving a majority against) - you need to bear a few things in mind, including methodology, the phrasing of the question and the timing of the question (what else is in the news at the time - this matters). A better idea is given by metadata from a few polls. And an even better idea is given by metadata from a few polls once the issue has been at the front of the political agenda for a period of time.