Reposted by Katrina Nilsson-Kerr
A mammoth effort from all involved. Great to see this published. bg.copernicus.org/articles/22/...
bg.copernicus.org
Reviews and syntheses: Review of proxies for low-oxygen paleoceanographic reconstructions
Abstract. A growing body of observations has revealed rapid changes in both the total inventory and the distribution of marine oxygen over the latter half of the 20th century, leading to increased int...