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  2. Oxygen minimum zone - Wikipedia

    en.wikipedia.org/wiki/Oxygen_minimum_zone

    Open ocean areas with no oxygen have grown more than 1.7 million square miles in the last 50 years, and coastal waters have seen a tenfold increase in low-oxygen areas in the same time. [47] Measurement of dissolved oxygen in coastal and open ocean waters for the past 50 years has revealed a marked decline in oxygen content.

  3. Ocean deoxygenation - Wikipedia

    en.wikipedia.org/wiki/Ocean_deoxygenation

    Ocean deoxygenation is the reduction of the oxygen content in different parts of the ocean due to human activities. [ 2 ] [ 3 ] There are two areas where this occurs. Firstly, it occurs in coastal zones where eutrophication has driven some quite rapid (in a few decades) declines in oxygen to very low levels. [ 2 ]

  4. Microbiology of oxygen minimum zones - Wikipedia

    en.wikipedia.org/wiki/Microbiology_of_oxygen...

    Open ocean areas with no oxygen have grown more than 1.7 million square miles in the last 50 years, and coastal waters have seen a tenfold increase in low-oxygen areas in the same time. [34] Measurement of dissolved oxygen in coastal and open ocean waters for the past 50 years has revealed a marked decline in oxygen content.

  5. Geological history of oxygen - Wikipedia

    en.wikipedia.org/wiki/Geological_history_of_oxygen

    The large size of many arthropods in the Carboniferous period, when the oxygen concentration in the atmosphere reached 35%, has been attributed to the limiting role of diffusion in these organisms' metabolism. [14] But J.B.S. Haldane's essay [15] points out that it would only apply to insects.

  6. Climate change will deplete ocean oxygen, kill fish, studies ...

    www.aol.com/news/climate-change-deplete-ocean...

    Climate change is going to wreak havoc on the world’s oceans, according to two new studies, depleting the warming waters of the oxygen that fish and other sea life need to survive.

  7. Anoxic waters - Wikipedia

    en.wikipedia.org/wiki/Anoxic_waters

    Many lakes have a permanent or temporary anoxic layer created by respiration depleting oxygen at depth and thermal stratification preventing its resupply. [ 5 ] Anoxic basins exist in the Baltic Sea , [ 6 ] the Black Sea , the Cariaco Trench , various fjord valleys, and elsewhere. [ 7 ]

  8. Human brain samples contain an entire spoon’s worth of ...

    www.aol.com/human-brain-samples-contain-entire...

    Human brains today contain 50% more plastic than in 2016, a new study found. ... “Compared to autopsy brain samples from 2016, that’s about 50% higher,” he said. ... some of the microplastic ...

  9. Oxygen - Wikipedia

    en.wikipedia.org/wiki/Oxygen

    It is also the major component of the world's oceans (88.8% by mass). [19] Oxygen gas is the second most common component of the Earth's atmosphere, taking up 20.8% of its volume and 23.1% of its mass (some 10 15 tonnes).