Some things matter more than others.

Somethings matter more than others. If we don’t get a handle on this matter the conversation ends and the lights go out.

The climate debate does not address our planet's declining ability to support photosynthesis; the fundamental process that moderates the chemistry of our oceans and atmosphere.

The atmosphere and oceans equilibrate thermally and chemically; one can not be considered without the other.

Ocean solute is unsustainably supporting Atmospheric Oxygen levels.

Can it can be inferred that some measure of O2 was "stored" in ocean solute when atmosphere O2 levels were somewhat higher than in this emerging Anthropocene; and any measurable reduction in atmospheric O2 concentration would mean dissolved oxygen in the ocean would come out of solution, thus depleting Ocean O2 solute at a ratio defined by Henry's Gas Law?

A number of supporting observations have been made by the scientific community:

The Scripps O2 Program website indicates a slight decrease in atmospheric O2 concentrations since 1960.
The Ocean O2 concentration has seen a reduction of about 2 percent since 1960.
Billfish habitat compression due to ocean de-oxygenation amounted to over 15% of total volume since 1960.

Is it probable that anthropogenic atmospheric de-oxygenation is playing a significant role in trending ocean de-oxygenation; beyond that caused from eutrophication and increasing water temperature?

At standard atmosphere the ratio of gas partial pressure to equilibrium aqueous solution concentration for Atmospheric Oxygen and the Ocean is about 769.23 where O2 aqueous solute equilibrium is about .00027 Molar.

769.23 = x/.00027 where the Partial Pressure of O2 at one atmosphere is .20769

The gas exchange between the ocean and atmosphere occurs at the surface. The transport of ocean O2 to and from that interface is not due just to mixing but also "diffusion"; where the flux would be proportional to the concentration gradient.(Fick"s Law)

I am confident that the oxygen concentration window is quite narrow for most organisms that are sustained by oxygenic redox chemistry. I suspect that the concentration window for energetic aquatic life is smaller than that for energetic terrestrial life.

Of related interest is how the human immune system might respond to long term decreasing O2 levels. If human physiology operates on oxygenic redox chemistry is it possible that our immune system would be the most sensitive subsystem to that chemistry?

I can think of no more humane way for The Creator to do a slow shutdown and reboot. As long as there isn't some crazy change of state in our planets equilibrium temperature, or the political response of Homo Sapiens to environmental pressures does not include nuclear conflagration, the species will most likely survive the reset.

WAG at the timescales for atmospheric collapse and reproduction: A few decades to a few centuries for the shutdown depending on O2 and N2 consumption rates and rate of photosynthesis; and some number of millennia or millions of years for reproducing a sustaining standard atmosphere. This provided the overall thermodynamic state of our planet is such that sufficient magnetic field is maintained to prevent atmospheric stripping by the solar wind.

http://butane.chem.uiuc.edu/pshapl…/GenChem1/L23/web-L23.pdf
http://www.billfish.org/…/Prince-et-al_2010_Atlantic.Compre…
http://scrippso2.ucsd.edu/
http://www.nature.com/…/jo…/v542/n7641/full/nature21399.html
http://www.nature.com/nature/journal/v542/n7641/full/nature21399.html
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