Oceans losing oxygen at unprecedented level, study suggests Oceans losing oxygen at unprecedented level, study suggestsCan climate watch a new report from the international Union of conservation of nature play Needtobreathe heat? Is the largest reported this kind of combining the efforts of more than 60 scientists from 17 countries? The study says nearly fifty percent of oxygen loss in the upper part of the ocean is a result of temperature increase in order to fix the issue. The report says humans must quickly tackled the climate crisis globally. The world’s oceans are struggling to breathe, rapidly running out of oxygen at an unprecedented rate. Climate change is dangerously exacerbating the issue, scientists warned in a new study.