Oxygen is disappearing from the world's oceans

The ocean is running out of oxygen at a rapid speed—and the depletion could choke to death much of the marine life these waters support. A sweeping review published in Science documented the causes, consequences and solutions to what is technically called “deoxygenation.” They discovered a four-to-tenfold increase in areas of the ocean with little to no oxygen, which researchers say is alarming because half of Earth’s oxygen originates from the ocean.

Oxygen is disappearing from the world's oceans