• Ocean oxygen levels declining since 1980s

    ByTeo Blašković

    A new analysis of decades of data on oceans across the globe has revealed that the amount of dissolved oxygen contained in the water – an important measure of ocean health – has been declining for more than 20 years. Researchers at Georgia Institute of Technology…

  • Atmospheric oxygen decline over the past 800 000 years

    ByTW

    Researchers from the Princeton University have compiled 30 years of data to construct the first ice core-based record of atmospheric oxygen concentrations spanning the past 800 000 years and showed that atmospheric oxygen has declined 0.7 percent relative to current…