Sentences with phrase «[ocean iron fertilization»

HSRC's George has a long history of attempting to commercialize such iron fertilization, most notoriously via the company known as Planktos, which went bankrupt in 2008.

It remains unclear at this point which particular species bloomed as a result of the HSRC iron release but the team is sending out for analysis more than 10,000 water samples, data the HSRC team says it will share as other iron fertilization experiments have done.

So did the iron fertilization work?

«I am disturbed and disappointed as this will make legitimate, transparent [ocean iron fertilization] experiments more difficult,» Smetacek says.

(Iron fertilization enthusiasts focus on the Southern Ocean because other seas have much more natural algae, so growing blooms might just foster growth that would have happened anyway.)

Victor Smetacek, the German oceanographer who led the expedition along with Victor Wajih Naqvi, an Indian geochemist, says that result means that iron fertilization has a much lower sequestration potential for atmospheric CO2 and, thus, will play a smaller role in fighting climate change than previously expected.

Before the 2004 study, known as EIFEX, the European Iron Fertilization Experiment, scientists had conducted 11 experiments at sea to explore how trace quantities of iron may encourage the growth of algae.

During her half - hour of interaction with the class, McNutt said, students asked questions ranging from the feasibility of the OTEC, or Ocean Thermal Energy Conversion — a strategy for harvesting energy from the oceans — to whether deforestation in Africa «might actually have a silver lining if it leads to ocean iron fertilization.»

With Leinen as its chief scientific officer, Climos sought to perform ocean iron fertilization experiments and sell carbon credits it could show it earned.

Another scientist, Margaret Leinen, is the head of a company, Climos, that is hoping to commercialize iron fertilization to gain carbon credits at sea.

Previously, scientists had thought that the algae technique, known as iron fertilization, could contribute to the drawdown of up to 1 gigaton of carbon a year — more than 10 % of current yearly emissions.

«There is massive uncertainty in this figure, and until much more research is done no serious scientist should express any confidence in such estimates,» of iron fertilization's geoengineering potential, cautions oceanographer Richard Lampitt of the National Oceanography Center in England, who also argues that more research into such potential geoengineering techniques is needed due to the failure of global efforts to curb greenhouse gas emissions.

According to Ingall, removal of iron by diatom - dominated phytoplankton communities may dampen the intended outcome of enhanced carbon uptake through iron fertilization by reducing the productivity of other phytoplankton, which take up carbon dioxide more efficiently.

Oceanographers have long recognized that iron fertilization in the Southern Ocean will drive phytoplankton blooms.

Nature's iron fertilization experiment had failed in the equatorial Pacific.

Scientists previously thought that iron fertilization could work in all iron - deficient ocean stretches: the subarctic North Pacific Ocean, the equatorial Pacific and the Antarctic Ocean.

Most scientists remain skeptical of whether iron fertilization will lead to greater carbon sequestration.

In that project, US entrepreneur Russ George convinced a Haida Nation village to pursue iron fertilization to boost salmon populations, with the potential to sell carbon credits based on the amount of CO2 that would be sequestered in the ocean.

How do phytoplankton respond to iron fertilization?

Ocean iron fertilization: Moving forward in a sea of uncertainty.

So, Smetacek argues, «Iron fertilization experiments carried out in the open ocean are the best way to find out how the ocean functions.»

Paul Beckwith has done both a blog and a You tube video on the possibilities of iron fertilization to reduce carbon in the atmosphere.

The wiki entry on «iron fertilization» is here.

Help the whales recover, restoring the natural iron fertilization part of the cycle.

From these relationships and reconstructed temperature time series, we diagnose glacial − interglacial time series of dust radiative forcing and iron fertilization of ocean biota, and use these time series to force Earth system model simulations.

Understanding iron cycling in Antarctic phytoplankton is crucial for determining whether iron fertilization can be an effective strategy for reducing atmospheric carbon dioxide.

Analyzing satellite data showing elevated chlorophyll levels (red), Peng Xiu of the University of Maine and co-authors identified a rare late summer plankton bloom associated with the 2012 iron fertilization experiment west of British Columbia.

-- Ocean iron fertilization is an immature technology whose high costs and technical and environmental risks currently outweigh the benefits.

Note 1: the NAS study includes ocean iron fertilization, which I haven't included in the above graphic because «previous studies nearly all agree that deploying ocean iron fertilization at climatically relevant levels poses risks that outweigh potential benefits.»

It is a plan for regulating geoengineering schemes classed as solar radiation management rather than carbon dioxide removal, even though ocean iron fertilization experiments have generated most controversy (6, 7, 12).

«But these species are incredibly responsive to iron, often becoming dominant in algal blooms that result from iron fertilization.

Think of the baggage / luggage conveyer systems at airports, one blocked piece of lugguage affects & backs up the entire conveyer system, which offsets an even balance, like our oceans, from this iron fertilization!

Eli suspects the most viable engineering solution to be iron fertilization, which itself is not problem free, but eliminates leakage and ocean acidification issues.

However, an «inconvenient truth» for proponents of ocean iron fertilization is that stimulation of phytoplankton blooms is only the first step in any successful ocean fertilization effort.

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.»

From recent article «Iron fertilization enhanced net community production but not downward particle flux during the Southern Ocean iron fertilization experiment LOHAFEX», by P. Martin, M. Rutgers van der Loeff, N. Cassar, P. Vandromme, F. d'Ovidio, L. Stemmann, R. Rengarajan,... Continue reading →

They include ocean iron fertilization and sulfate aerosol spraying, each of which now has a scientific - commercial constituency.

These are places where the ocean chemistry is right for iron fertilization, that is, where there is available nitrogen as nitrate or ammonia, and phosphorus.

It might be worth trying to establish fisheries via iron fertilization.

There have been iron fertilization experiments of the ocean before, many of them, in the equatorial Pacific, the Southern Ocean, and the North Pacific.

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

Modelers have long ago concluded that iron fertilization of the ocean can play only a small role in managing the carbon cycle in the coming century.

Eleven smaller iron fertilization experiments have already taken place.

The wiki entry on «iron fertilization» is here.

But the change in carbon chemistry of the ocean and ultimately the atmosphere need to be transparently documented, also, if we are to trade carbon offsets based on iron fertilization.

Paul Beckwith has done both a blog and a You tube video on the possibilities of iron fertilization to reduce carbon in the atmosphere.

It seems to me that iron fertilization will likely have its greatest impact in oligotrophic regions (e.g., subtropical gyres) which currently provide less than 10 % of world NPP.

The water might duck into the thermocline for a few decades, but it will ultimately resurface and be subject again to photosynthetic plankton and iron fertilization from falling dust.

Iron fertilization has a great future IF we genetically engineer a gigantic coccolithophore.

The simple fact is that while iron fertilization experiments have been taken place for nigh on twenty years thanks to the late John Martin's iron hypothesis, none of these experiments have lasted long enough or been conducted on a large enough scale to effectively measure the entire life of a pleagic phytoplankton bloom, artificially fertilized or naturally occuring.