Ocean Survival is Our Survival
The oceans are dying, and with it the world will die. This is not a new thing, it happend several times in the world's history. The causes have differend but one recurring trigger has often been rapid climate change, either warming or cooling. We now experience warming
due to CO2 emissions. According to some Global Warming should be called Ocean Warming, as
80% of the heat ends up in our oceans. But how does this lead to our extinction?
Similarities in previous extinctions

Extinctions through the ages (showing percentage of marine life that went extinct)
| Extinction | How Long Ago | Probable Cause |
| End–Ordovician extinction event | 545 mln | Oceans anoxic. Climate changes from very warm to very cold and back to very warm |
| Late Devonian extinction | 364 mln | Changes in sea level and ocean anoxia |
| Permian–Triassic extinction event | 251.4 mln | Vulcanism,Warmimg 10 degrees, ocean anoxia and methane hydrate release |
| Triassic-Jurassic Extinction | 199.6 mln | Rapid CO2 increase, warming, Methane hydrate release, Ocean anoxia |
| Toarcian Oceanic extinction | 183 mln | Cooling, then warming, Anoxic oceans, 1200 ppm CO2 |
| Mid-Cretaceous | 80-120 mln | 3 degrees warming, global oceanic anoxia |
| K/T extinction event | 65.5 mln | Meteorite impact, Global cooling to near freezing |
The killer substance that will becomes abundant in the deep oceans once the currents stop is Hydrogen Sulfide, a colorless, very poisonous, flammable gas with the characteristic foul odor of rotten eggs. It will kill all that breaths it. Fumes of decomposing algae can also kill and force people away from the coast, as it did in France last year.
These anoxic events are linked to so called
carbon burial, or the massive sequestration of carbon by oceanic life at the surface. This proces is supposed to be fed by the runoff of dead organic matter from land. The dead ocean's surface would have for a time been teeming with algae. Usually in the geological record one also finds a layer consisting of the ocean lifeforms that went extinct.
If ocean currents stop
stratfication takes place, which means the layering of the oceans become stabile, with warm and nutrient depleted water on top and cold, nutrient rich but anoxic water at the bottom. This state can persist for millions of years in which there is little chance for life to evolve.
Killing coastal algae
Natural upwelling
Ocean waters can be forced to the surface by winds and underwater obstacles, or simply because water is flowing down somewhere else. The above map shows some of the patterns. The so called
Ekman Transport dictates that wind induced currents flow to either the right or the left side of the wind, depending on the hemisphere. If the winds cause the Ekman Transport to run away from the coast,
this draws nutrient righ water from deeper below to the surface, like at the Benguela upwelling zone near Tasmania.
Today these type of upwellings are affected by climate change. Model predictions seem to be confirmed by
changes in the wind based ocean upwellings near the coast of California. This kills species that depend on nutrients earlier in the season. Temerature differences as a result of absent cool deep water can be 2 degrees Celsius. Climate change is changing wind patterns, and so changes upwelling timing and locations.
At the poles the water cools considerably and becomes more heavy. It flows down and displaces the deeper water. This is then forced to travel considerable distances on the bottom of the ocean to where it is drawn up by the water moving to the poles. Loss of sea ice at the poles can thus function as a 'switch',
ushering in accelerated warming. The cold deep water wells up are around the equator and in other places like the Indian Ocean. This is process is called the
Thermohaline Circulation. This circulation has great importance for western Europe as it causes the relatively mild climate as equatorial warm water flows to the North along its coasts, hence the worry about cooling in Northern Europe.
Upwelling map
Today the oceans flow, due to the
thermohaline circulation, mixing the nutrients collected in the deep ocean to the surface and taking oxygen down to enable life in the deep ocean. There is a so called 'tipping point' at which this circulation collapses. If that happens the oceans will die. Models show our current climatic impact can weaken these currents,
but not all, but in fact a
weakening has been observed since the 70's. Other measurement show
decreases in flow since the 50's. Related to strenght of ocean currents even the deep waters now
show significant warming. Dedicated research and monitoring programs have been put in plce specifically
RAPID.

Result of different predictive models show a decline in the important equatorial upwelling
Artificial upwelling
What is the potential of
Artifical upwelling?. According to Prof. Dr. Andreas Oschlies's model it is 3 GT per year (Not sure if the capacity is maximized, but compare antropogenic production is
3.2 GT), and there is a suprising upside of a cooling effect apparently slowing decomposition on land (that reduces co2 emissions and preserves plant species and cools the poles right?). Apparently the point is that the sequestered carbon is
hard to measure because it will be distributed across the landmasses in non decaying organic material, well boo hoo! Another strange claim is an increase in CO2 emission once the upwelling pumps are halted (but why would you do that?).
Angelicque White at the Oregon State University did more practical research, using wave driven pumps. She learned you need to take the water from the right debth so it has just the right combination of nutrients and dissolved gasses (which she concluded is about 300 to 700 meter deep). Co-researcher Ricardo Letelier said "These vast regions (around Hawaii) of the open ocean may be perfect for sequestering carbon".
Instead of waiting for the blooms to be feed by the runoff of killed life on land, we should preemtively cause them using artificial upwelling to draw down carbon dioxide and cool the earth.
Help me continue this reseach (as pm) by donating at
my website and spreading the word.
Policy
The US government is informed and misinformed.
Scott Doney testified for the U.S. Senate Committee on Commerce, Science and Transportation's Subcommittee on Oceans, Atmosphere, Fisheries, and Coast Guard and claimed ocean stratification and increased acidification would be 'good for production', never mentioning anything about the usual accompanying extinction. Looking into the geological past,
testimony to congress by Robert B. Gagosian, President and Director of the Woods Hole Oceanographic Institution does not go further than outlining its impact on the climate. The biggest problem is not the shift in temperatures across the globe, although it would have massive impacts on where things grow and where one could survive, the whole temperature issue is trumped by the fact the ocean emissions would kill everything. The way it is discussed in above testimony is clearly misleading as it misses the point of the whole climate discussion: Human survival.