Ocean oxygen levels declining since 1980s

Ocean oxygen levels declining since 1980s

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

Atmospheric oxygen decline over the past 800 000 years

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…