Ocean Deoxygenation as an Indicator of Abrupt Climate Change – Nature Bats Last
I turn, as usual, to evidence beyond the headlines. I know few people are impressed with this unusual approach. Indeed, I suspect few people even understand the idea. This is why I write primarily for myself: Writing forces clear articulation of the writer’s thoughts, as I explained to resistant college students for more than two decades.
Shifting the baseline is a common trick used by governments, media, and paid climate scientists, as I have explained repeatedly. We were on the brink in 1965, we had 10 years in 1989, and now we have until 2030. Shifting the baseline continues, even in the journal literature, which claims we are striving to achieve a target we passed long ago: 1.5 C above the pre-industrial baseline.
In the current case, shifting the baseline is hardly the only problem with the journal article. Indeed, the article refers to ocean deoxygenation (also known as hypoxia) as if this phenomenon could never occur in the near future, much less today. The study adds to information published in a March 2017 edition of Proceedings of the National Academy of Sciences pointing to deoxygenation of the oceans. Neither study draws attention to earlier research indicating deoxygenation could become a major issue by 2030. Nor do they point out obvious, ongoing harbingers. They similarly downplay the rapidity with which deoxygenation can occur, as reported in the August 2017 issue of Science Advances. The latter paper mentions, quite importantly, that dead zones in today’s oceans bear remarkable resemblance to those during the Cretaceous. As pointed out in an article in the 19 December 2018 issue of Science Advances, “ocean oxygen loss may, thus, elicit major changes to midwater ecosystem structure and function.”
Even U.S. Senator Bernie Sanders is willing to describe ocean deoxygenation as a contemporary issue, as illustrated in the short video embedded below