Published today(วันนี้) in the journal Proceedings(ดำเนินการตามกฎหมาย)of the National Academy(สถาบันการศึกษาแห่งชาติ) of Sciences (PNAS), marine ecologists from the University of Adelaide say the expected ocean acidification and warming is likely to produce a reduction in diversity and numbers of various key species that underpin marine ecosystems around the world.