Scientists have found the world’s first large-scale area of acidified water in the open ocean in the seas of the western Arctic. In other (oceans), you may have a small part with low pH, but the Arctic Ocean is the first one we have observed with a larger scale acidification. Ocean acidification is related to increasing levels of atmospheric carbon dioxide. Waters grow more acidic as they absorb gas from the air. The pool is also deeper. It’s now found as low at 250 metres, an increase of 100 metres.
— source thestar.com 2017-08-06