I don't - offhand. Back when I was taking classes in it, the industry was collapsing in China because of water pollution. I have been reading about blue-green

I don't - offhand. Back when I was taking classes in it, the industry was collapsing in China because of water pollution. I have been reading about blue-green algae tides and chemical spills and other issues affecting the industry these days, but I don't have a specific source detailing its impact. Sorry. (Good one for calling me out on that!)