Sentences with phrase «iron fertilization as»

GreenSea Venture, the company started by Markels, remains very focused on iron fertilization as a sequestration strategy.

Nevertheless, in view of the serious risks we are presently taking with our global climate, I feel that considering iron fertilization as a possible means for purposeful co2 sequestration can not be entirely dismissed at this point.»

The federal Department of Energy, recently provided with $ 90 million in carbon sequestration research, continues to seek proposals to study iron fertilization as a carbon dioxide amelioration strategy.

The facts seem pretty clear: ocean iron fertilization as a CO2 mitigating process is a fraud.

Not exact matches

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.

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

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 alIron Fertilization Experiment, scientists had conducted 11 experiments at sea to explore how trace quantities of iron may encourage the growth of aliron may encourage the growth of algae.

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

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.

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).

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.&raquAs 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.&raquas 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.»

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.

This result sheds new light on the effect of long - term fertilization by iron and macronutrients on carbon sequestration, suggesting that changes in iron supply from belowâ as invoked in some palaeoclimatic and future climate change scenarios11â may have a more significant effect on atmospheric carbon dioxide concentrations than previously thought.

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 experimeIRON 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 experimeiron supplied, was at least ten times higher than previous estimates from short - term blooms induced by iron - addition experimeiron - addition experiments.

Kim Stanley Robinson's wildly successful 1993 science fiction trilogy about geo - engineering and terraforming, Red Mars, Green Mars, Blue Mars, describes «the fertilization of the Antarctic Ocean with iron dust, which was to act as a dietary supplement to phytoplankton» as a cure for both global warming and dying coral reefs.

A few scientists do say that, as we improve our understanding of marine ecosystems, iron fertilization may provide a small part of the total solution.

For iron fertilization forcing, we choose temperature − dust relationships from the high southern latitudes, as the Southern Ocean is the main region where this process is relevant.

We use the above dust deposition − temperature relationships to derive climate dependencies of dust radiative and iron fertilization forcing under the assumption that both forcings vary in proportion to the dust deposition, and can therefore be expressed in the same form as Eq.

This allows us to scale the two records by their respective interglacial levels, combine them to better resolve the Southern Ocean, and use the combined record as our proxy for glacial / interglacial iron fertilization forcing.

Most albedo modification geoengineering is worth avoiding as is ocean iron fertilization, as risks outweigh potential benefits.

In addition to altering marine food webs, iron fertilization could produce greenhouse gases more potent than carbon dioxide, such as nitrous oxide and methane, or block sunlight needed by deep coral reefs.

(07/18/2012) For a long time, oceanic iron fertilization was seen as a promising mechanism to combat global climate change.

The climate feedbacks involved with these changes, which are key in understanding the climate system as a whole, include: + the importance of aerosol absorption on climate + the impact of aerosol deposition which affects biology and, hence, emissions of aerosols and aerosol precursors via organic nitrogen, organic phosphorus and iron fertilization + the importance of land use and land use changes on natural and anthropogenic aerosol sources + the SOA sources and impact on climate, with special attention on the impact human activities have on natural SOA formation In order to quantitatively answer such questions I perform simulations of the past, present and future atmospheres, and make comparisons with measurements and remote sensing data, all of which help understand, evaluate and improve the model's parameterizations and performance, and our understanding of the Earth system.