Sentences with phrase «ocean carbon content»

The ocean carbon content and water temperature determines the ocean state.

Today, as we pump more CO2 into the atmosphere, slightly more flows from the atmosphere into the ocean, leaving enough to increase the atmospheric CO2 concentration, and increasing the oceans carbon content.

Not exact matches

It also reinforces the notion, however, that deliberately seeding the oceans with iron — which has been proposed as a way to draw carbon dioxide out of the atmosphere — might do almost nothing to change the CO2 content of the air.

Possible mechanisms include (iv) fertilization of phytoplankton growth in the Southern Ocean by increased deposition of iron - containing dust from the atmosphere after being carried by winds from colder, drier continental areas, and a subsequent redistribution of limiting nutrients; (v) an increase in the whole ocean nutrient content (e.g., through input of material exposed on shelves or nitrogen fixation); and (vi) an increase in the ratio between carbon and other nutrients assimilated in organic material, resulting in a higher carbon export per unit of limiting nutrient expoOcean by increased deposition of iron - containing dust from the atmosphere after being carried by winds from colder, drier continental areas, and a subsequent redistribution of limiting nutrients; (v) an increase in the whole ocean nutrient content (e.g., through input of material exposed on shelves or nitrogen fixation); and (vi) an increase in the ratio between carbon and other nutrients assimilated in organic material, resulting in a higher carbon export per unit of limiting nutrient expoocean nutrient content (e.g., through input of material exposed on shelves or nitrogen fixation); and (vi) an increase in the ratio between carbon and other nutrients assimilated in organic material, resulting in a higher carbon export per unit of limiting nutrient exported.

The ocean, with around 38,000 gigatons (Gt) of carbon (1 gigaton = 1 billion tons), contains 16 times as much carbon as the terrestrial biosphere, that is all plant and the underlying soils on our planet, and around 60 times as much as the pre-industrial atmosphere, i.e., at a time before people began to drastically alter the atmospheric CO2 content by the increased burning of coal, oil and gas.

The ocean is therefore the greatest of the carbon reservoirs, and essentially determines the atmospheric CO2 content.

One of the things pointed out in that post is that we know that the rise in atmospheric CO2 is entirely caused by fossil fuel burning and deforestation because many independent observations show that the carbon content has also increased in the ocean.

And while indicators like ocean heat content may respond more quickly or dramatically to the carbon emissions that cause climate change, surface temperature is more closely related to the effects of climate change — and the effects, after all, are what climate policies at any level are intended to ease.

Victor argues that policymakers should instead focus on a suite of «vital signs» that are more tightly linked to carbon emissions, including atmospheric carbon - dioxide concentrations, ocean heat content, and high - latitude temperature changes.

Pollutants have altered on a global scale the carbon dioxide content of the air and the lead concentrations in ocean waters and human populations.

Documenting a change in carbon content of surface waters might be possible in the tropics, but it would be a nightmare in the Southern Ocean, probably impossible to do reliably.

In tranquil, well - behaved parts of the ocean like near the Galapagos, it would be probably easier to document changes in the carbon content of the upper ocean than it would be on land.

Note that the gross amounts of carbon annually exchanged between the ocean and atmosphere, and between the land and atmosphere, represent a sizeable fraction of the atmospheric CO2 content and are many times larger than the total anthropogenic CO2 input.

Figure 9 - A Effect of the doubling of the carbon dioxide content of the air: note on the lowest graphic the 7 °C hot spot at 250 mbar and on the middle graphic +12 °C in winter on the rim of Antarctica and on the arctic polar cycle, +5 °C over the Sahara, +4 °C over the whole Pacific ocean.

-- If undersea volcanoes emit sufficient amounts of acids (in the enormous carbonate buffer masses of the deep oceans), then the pH of the oceans could lower somewhat, but that would show up in a lower total carbon (DIC: CO2 + - bi-carbonates) content of the oceans as they release CO2 to the atmosphere.

A clear drop in the carbonate content of deep - sea sediments directly points towards ocean acidification as a side effect, a perturbation to the carbon cycle that lasted about 170,000 years.

As the warming of oceans is the dominating reason for the increased content of atmospheric carbon dioxide, and as nowadays the human yearly portion (about 8 GtC CO2) of the all yearly CO2 emissions (little over 200 GtC CO2) to the atmosphere is about 4 %, the human role on the recent yearly increase of CO2 in the atmosphere is also about 4 %.

We know at a useful level, what has happened to the surface ocean as the relationship between the pH value, carbon content and temperature is well known (the determination is not very accurate, but still quite satisfactory).

What is also lost is the carbon that falls to the bottom of the oceans, the raining «shit» fog that covers wrecks like the Titanic / Bismark, is destined to form sedimentary rocks with a high carbon content.

Scientific confidence of the occurrence of climate change include, for example, that over at least the last 50 years there have been increases in the atmospheric concentration of CO2; increased nitrogen and soot (black carbon) deposition; changes in the surface heat and moisture fluxes over land; increases in lower tropospheric and upper ocean temperatures and ocean heat content; the elevation of sea level; and a large decrease in summer Arctic sea ice coverage and a modest increase in Antarctic sea ice coverage.