Articles tagged with Iron Fertilization
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Researchers found a surprising correlation between West Antarctic Ice Sheet retreat and marine algae growth over the past 500,000 years. The study suggests that global warming may lead to reduced CO2 uptake if the ice sheet continues to shrink.
A new study reveals that industrial iron from coal and steel industries is altering the North Pacific ecosystem, leading to changes in phytoplankton growth and nutrient cycles. The research found that increased iron supply boosts spring phytoplankton blooms but also depletes other nutrients, resulting in a crash later in the season.
A mathematical model estimates iron fertilization's potential costs, ranging from $7 to $1,500 per ton of carbon removed. The study also explores the impact of verification methods and aerial delivery on costs.
Researchers have identified two essential ferredoxins that play a key role in determining the performance of iron nitrogenase. The discovery opens up new possibilities for elucidating and maximizing nitrogenase's potential, which could lead to sustainable enzymatic production of ammonia and carbon compounds.
A new study published in Global Change Biology suggests that large-scale ocean iron fertilization could exacerbate climate change-driven nutrient shortages and productivity losses in the tropics, potentially harming coastal fisheries. The research also showed a five percent decline in fish and marine species biomass in tropical areas d...
A new study published in PNAS found that iron fertilization had little to no effect on the growth of algae in the equatorial Pacific Ocean. The research, led by Gisela Winckler, used deep-sea sediment cores to test for barium and opal, and measures of thorium-232 reflected the amount of dust that blew in from land at each point in time.
A University of Oklahoma-led study reveals that vast amounts of iron-rich dust deposits from 300 million years ago had a significant impact on ecosystem fertilization and atmospheric carbon levels. The research offers insights into the potential consequences of geoengineering schemes to control climate change.
A new study reveals that iron fertilization in the Southern Ocean may reduce the biological carbon pump's ability to transport carbon dioxide into the deep ocean. This process, which draws carbon dioxide from the atmosphere into the sea, is crucial for mitigating climate change.
During the last ice age, wind-borne dust carried iron to the Southern Ocean, driving plankton growth and removing carbon dioxide from the atmosphere. This process, known as iron fertilization, is believed to have played a key role in amplifying the ice ages.
The EIFEX experiment showed that a substantial proportion of carbon from the induced algal bloom sank to the deep sea floor. This is remarkable because the bloom developed in a 100-meter deep mixed layer, much deeper than previously believed.
A new study found that iron from natural or artificial sources can stimulate rapid growth of toxin-producing algae, such as diatoms producing domoic acid, in the open ocean. This discovery adds to concerns about proposals for iron fertilization to combat global warming.
A multi-year study reveals that nutrients from the Amazon River spread beyond the continental shelf and drive carbon capture in the deep ocean. Diazotrophs, which pull nitrogen and carbon from the air, offset respiration in tropical oceans, making them a significant carbon sink.
Researchers will gather to share scientific observations and discuss issues involved in altering the ocean's chemistry. The conference aims to inform policymakers, industrial interests, and environmentalists about the potential efficacy and consequences of iron fertilization.
Iron fertilization of phytoplankton could lead to changes in atmospheric composition and climate, potentially offsetting CO2 removal benefits. This may also result in significant warming of ocean surface waters, affecting oceanic circulation and the climate.