In a book about academic writing I found this sentence:
'Turning to the subject of variations within Britain, there are significant differences between regions.'
Is this a good sentence or a dangling participle? How else could you put it?
I wouldn't have caught it casually, but when you study it, I suppose it would be better phrased as, "Turning to the subject of variations within Britain, one notices significant differences..."
When you see one of those -ing phrases, they should refer to the subject of the sentence.