Sentences with phrase «with iron fertilization»

This is how the model deals with iron fertilization strength in the Southern Ocean (SO; see Dust Radiative and Iron Fertilization Forcings).

We deal with iron fertilization in the context of the Danish Center for Earth System Science (DCESS) model (41) for which reduction of high - latitude new production (relative to that which would occur if phytoplankton there could make full use of all available nutrients) is expressed in terms of an efficiency factor (see equation 19 in ref.

Not exact matches

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.

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.

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.

What are your views on experiments testing whether fertilization of mineral - starved regions of the oceans with iron could serve to pull carbon dioxide out of the atmosphere?

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.

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.»

This paper considers the practicalities, opportunities and threats associated with one of the earliest proposed carbon - removal techniques: large - scale ocean fertilization, achieved by adding iron or other nutrients to surface waters.

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.

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.

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.»

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.

The 2012 iron fertilization generated an algae bloom that fed salmon at the right time to boost the salmon population * the salmon bloom died in days and then fell to the bottom of the ocean taking large amounts of CO2 with them

The Planet Remade covers all the main proposed geoengineering techniques --(not just SAI, but also ocean iron fertilization (OIF), marine cloud brightening (MCB), bioenergy with carbon capture and storage (BECCS) and direct air capture (DAC)-RRB-, outlining their history, the current state of knowledge, and expected risks and benefits (and impressively, without descending into the alphabet soup of all these acronyms).

1 to bin means and medians using an alternative low - passed filtered, Greenland temperature anomaly time series (SI Materials and Methods) and application of that time series to construct alternative radiative forcing time series, (iv) radiative forcing calculated for 50 % decrease / increase compared with our standard LGM value (RFLGM = − 0.5 and − 1.5 W ⋅ m − 2), and (v) iron fertilization forcing calculated for 50 % decrease / increase of the difference between standard LGM and present - day values (IFLGM = 0.43 and 0.57).

Most model drawdown is associated with higher new production in the high - latitude zone, due to iron fertilization, combined with carbonate compensation (ref.

Comparison with data and data - based reconstructions over the last glacial cycle of a model simulation for combined dust radiative and iron fertilization forcing.

Therefore it's my opinion that the not - so - extreme decline from April to July 2010, coupled with the higher - than - usual April value, coupled with the changes (both trend and fluctuation) in both the size of and the timing of the annual cycle, are such that there's insufficient evidence to conclude that the Eyjafjallajökull eruption caused a noticeable change in atmospheric CO2, whether by emissions from the eruption, the lack of emissions from air traffic, or iron fertilization of the oceans.

Those CDR techniques with the least potential: Biochar («significant doubts» about scope, effectiveness and safety - «substantial research» required to prove effectiveness) and ocean iron fertilization (not proven to be effective and «high potential for unintended and undesirable ecological side effects»).

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.