Sentences with phrase «ocean carbon sequestration»

The following SPP 1689 poster will be exhibited at the AGU: GC13C - 1154: The Climate Potentials and Side - Effects of Large - Scale terrestrial CO2 Removal — Insights from Quantitative Model Assessments — Monday, 15 December 2014, 13:40 - 18:00, Moscone West - Poster Hall, Lena Boysen, Vera Heck, Wolfgang Lucht, Dieter Gerten GC13C - 1155: On nutrients and trace metals: Effects from Enhanced Weathering — Monday, 14 December 2015, 13:40 - 18:00, Moscone South - Poster Hall, Thorben Amann, Jens Hartmann B23G - 0682: Revisiting ocean carbon sequestration by direct injection: A global carbon budget perspective — Tuesday, 15 December 2015, 13:40 - 18:00, Moscone South - Poster Hall, Fabian Reith, David Keller, Torge Martin, Andreas Oschlies C41B - 0702: Assessing the potential and side effects of ocean albedo modification in the Arctic — Thursday, 17 December 2015, 08:00 - 12:20, Moscone South - Poster Hall, Nadine Mengis, Andreas Oschlies, David Keller, Torge Martin

One may suggest that ocean carbon sequestration can proceed more effectively through the uptake of atmospheric CO2 by intertidal marsh grasses and the subsequent export.

My understanding of this process is that it mostly occurs near coastal upwellings which bring up nutrients from the deep and that it is responsible for a significant fraction of ocean carbon sequestration.

Not exact matches

But biogeochemist Kenneth Coale, director of Moss Landing Marine Laboratories in California, estimates that the silicon - rich southern part of the Southern Ocean would deliver up to twice as much potential carbon sequestration as the northern area Smetacek fertilized, in large part because of the diatoms and associated ecosystem dynamics.

You report on a successful trial of ocean iron - seeding to promote plankton growth and potential carbon sequestration via the sinking...

He and his colleagues turned to satellite data to observe the phenomenon on a much broader scope and found that iceberg - related blooms could contribute a fifth of the Southern Ocean's total carbon sequestration.

Global oceans provide many vital «silent services» besides being a source of food, and carbon sequestration is one of its most important.

Eddies carry heat, carbon, and other biogeochemical tracers into the deep ocean, aiding carbon and heat sequestration.

«This could be positive, e.g. in the case of sequestration of our carbon emissions in the ocean.

Geoengineering proposals fall into at least three broad categories: 1) managing atmospheric greenhouse gases (e.g., ocean fertilization and atmospheric carbon capture and sequestration), 2) cooling the Earth by reflecting sunlight (e.g., putting reflective particles into the atmosphere, putting mirrors in space to reflect the sun's energy, increasing surface reflectivity and altering the amount or characteristics of clouds), and 3) moderating specific impacts of global warming (e.g., efforts to limit sea level rise by increasing land storage of water, protecting ice sheets or artificially enhancing mountain glaciers).

Karl Schroeder: If there is any life on Earth in 100 years, I foresee either an ecological catastrophe, with the majority of species extinct, the oceans stagnant, the arctic and Antarctic desolate and lifeless, and billions of people living in complete ignorance of how things could be, in massive urban centres; or, a world in which climate change was solved early and completely through innovations in power generation and carbon sequestration, where agriculture has gone to vertical farming and North America has largely been rewilded back to forest and open prairie, and where extinct species are regularly recreated by genetic engineering and reintroduced.

Think «Cretaceous Period») solubility in warmer or colder oceans, carbon sequestration, plant metabolism, even just proper measurements of the variables???

Obviously the «cap and trade» approach to putting out the fire will subsidize all sorts of dubious projects like carbon - sequestration in the oceans as the fire still burns.

The production of food and fibre; the urbanization of once agricultural or forested lands; and the sequestration of that portion of carbon emissions from fossil fuels that is not already absorbed by oceans or by long - term sequestration strategies in agriculture or forestry, all constitute competing or non-overlapping uses of ecosystems.

As researchers concluded in a new study published in Geophysical Research Letters, ocean iron fertilization can only prove successful as a climate geoengineering approach if, in addition to phytoplankton bloom stimulation, «a proportion of the particulate organic carbon (POC) produced must sink down the water column and reach the main thermocline or deeper before being remineralized... and the third phase is long - term sequestration of the carbon at depth out of contact with the atmosphere.»

Of the 24,982 Lagrangian particles injected into the Southern Ocean at a depth of 1000 meters, 66 % were advected (in an average of 37.8 years) above a designated mixed layer depth boundary that the researchers deemed to be «a key boundary to separate failed and successful carbon sequestration.»

Adding phosphorous to the ocean via existing activities may have greater long - term carbon sequestration potential than iron or nitrogen fertilization schemes.

This lack of data limits our ability to establish the role of sea ice in large - scale reorganizations of ocean circulation and carbon sequestration entering a glaciation.

A potential weakness of CRFS in addressing the issue of around 170 ppm of airborne and marine (re-emitted) CO2 is the lead - time for native coppice afforestation of non-farmland for charcoal - feedstock, plus the oceans» thermal inertia timelag on the carbon sequestration's cooling effect.

Due to normal carbon sequestration as found in the oceans and elsewhere, we don't have enough fossil fuels to cover that long a period anyway.

He and his colleagues turned to satellite data to observe the phenomenon on a much broader scope and found that iceberg - related blooms could contribute a fifth of the Southern Ocean's total carbon sequestration.

In addition, DOC can influence algal blooms, phytoplankton productivity, and carbon sequestration in coastal waters, so understanding fluxes in DOC transport into the ocean is critical for evaluating its effects on coastal food webs.

Blain, S. Effect of natural iron fertilization on carbon sequestration in the Southern Ocean.

EFFECT OF NATURAL IRON FERTILIZATION ON CARBON SEQUESTRATION IN THE SOUTHERN OCEAN Nature, Vol 446 26 April 2007 doi: 10.1038 / nature05700 The efficiency of fertilization, defined as the ratio of the carbon export to the amount of iron supplied, was at least ten times higher than previous estimates from short - term blooms induced by iron - addition experiCARBON SEQUESTRATION IN THE SOUTHERN OCEAN Nature, Vol 446 26 April 2007 doi: 10.1038 / nature05700 The efficiency of fertilization, defined as the ratio of the carbon export to the amount of iron supplied, was at least ten times higher than previous estimates from short - term blooms induced by iron - addition expericarbon export to the amount of iron supplied, was at least ten times higher than previous estimates from short - term blooms induced by iron - addition experiments.

-- Southern Ocean Iron Fertilization Experiment (SOFeX)-- The basics of the most recent expedition — Penny Chisholm's site, which lists many professional papers — Paul Falkowski's article (PDF document)-- DOE article: Climate Change Scenarios Compel Studies of Ocean Carbon Storage — Government site for carbon sequestration research — An earlier piece Williams wrote on sequestration — Will Ocean Fertilization To Remove Carbon Dioxide from the Atmosphere Work?

Sequestration of organic carbon in the deep sea by stimulating spring phytoplankton production in high - latitude oceans;

According to Dr Lutz «The limited duration of previous ocean fertilization experiments may not be why carbon sequestration wasn't found during those artificial blooms.

Indeed, the global study of Dr. Lutz and colleagues suggests that greatly enhanced carbon sequestration should not be expected no matter the location or duration of proposed large - scale ocean fertilization experiments.

ESM 202 - Environmental Biogeochemistry [4 units] Melack & Holden Biogeochemical processes as applied to the Earth's atmosphere, oceans, land, and inland waters, and applications to environmental issues such as eutrophication, toxic pollution, carbon sequestration, and acidification.

Many ways, but IMO the best way would be to divert a fraction of the carbon removed from the air / ocean surface for profit to sequestration.

A second general method for cooling the planet involves removing carbon dioxide (CO2) from the atmosphere, either via sequestration or CO2 capture, or possibly through ocean iron fertilization to promote the growth of CO2 - consuming algae.

The thrust of Becker's piece is that the planet might be screwed, but that efforts to mitigate global warming through geo - engineering — giant mirrors in space, the injection of aerosols into the atmosphere, carbon sequestration, seeding oceans with iron oxide, and that sort of thing — are unethical and impractical.

Few exceptions, like the disappointing attempt at ocean iron fertilisation (theoretically (Nature) enhancing carbon sequestration — no more than 1 Gt per year under full implementation, Australian research group) could indeed affect ecosystems.

Injecting the carbon deep underground or deep into the ocean are the two main avenues being explored for large - scale, long - term sequestration.

«Even the placement of iron particles into the ocean, whether for carbon sequestration or fish replenishment, should not take place, unless it is assessed and found to be legitimate scientific research without commercial motivation.