I have a very superficial understanding as far as a … but, um, acidification issues is one. I’ve not read widely or deeply, I have read some. Which, different perspectives, some of which suggest that it’s a very, very fragile set of changes and acidification and others that say that, for you know long eons of geological history, there are certain places of certain oceans, may have changes in acidification levels but not others. So it’s such that changes either up or down are not inherently a problem. […]