Well if you read it in isolation, perhaps so. in context, the three sentences taken together, the last closing with "and still remains the primary factor, espec

Well if you read it in isolation, perhaps so. in context, the three sentences taken together, the last closing with "and still remains the primary factor, especially closer to coasts." seems to point to the correct main cause. Sure it's sloppily written, but so is nearly every article on astronomy or medicine etc. But I'd generally like more science in my science reporting than I'm ever going to get. And as it's a longer one, I wonder how much time they get to boil down a 500 page report to 1 page pop-science piece.