Iron gall ink was the writing medium of Europe from the 12th through the 19th centuries, and its recipe sounds almost alchemical. Scribes mixed iron(II) sulfate with tannin-rich extracts from plant galls and organic binders such as gum arabic. The polyphenols in the tannins react with iron to form dark complexes that deepen to a rich brown-black on exposure to oxygen. The chemistry that made the ink so legible, however, also made it corrosively acidic, and the same reactivity has been slowly eating away at parchment and paper for centuries. In some ancient documents, conservators noticed something stranger still: crystals forming within the ink itself, causing the written text to fade rather than simply darken.

Those crystals turned out to be jarosite, a potassium iron sulfate hydroxide mineral that also occurs in sodium and hydronium varieties. Jarosite precipitation requires a very specific combination of conditions: abundant sulfate, ferric iron, and a strongly acidic environment. Previous attempts to reproduce its formation in laboratory-made inks reached no conclusive explanation, though repeated wetting and drying cycles have long been considered the main trigger. The new study offers a more complete picture, showing that the mineral’s appearance in the manuscript reflects interconnected inorganic and organic processes, including iron redox cycling, organic-iron complexation, and a drop in pH below 3.0, with most of the precipitation chemistry being essentially non-biological.

Under the microscope, the jarosite in the faded manuscript appeared in two telling forms. Dendritic precipitates, branching like miniature frost patterns, marked areas where the mineral had crystallized rapidly from supersaturated solutions. Elsewhere, pseudo-rhombohedral crystals displayed clear evidence of dissolution, their edges etched and corroded. This combination of fresh precipitation and active dissolution is the mineralogical signature of a system in flux, where jarosite forms, breaks down, and re-forms as chemical conditions shift within the ink layer. Crucially, both crystal types were closely associated with fungi and bacteria, placing the microorganisms at the heart of the mineral’s life cycle.

Metagenomic analysis of the ink identified acidophilic fungi belonging to the genera Geotrichum and Coniochaeta as key players. These organisms are extremophiles in a quiet sense, thriving in an environment that would dissolve most organic life. The researchers found that these fungi mobilized elements both inside and outside the inked areas of the manuscript, effectively transporting iron, sulfur, and other components across the document’s surface. In other words, the microbes were not merely passive residents of an acidic niche; they were actively redistributing the ink’s chemistry, driving the dissolution of jarosite crystals and enabling their reprecipitation in new locations.

The mechanism the authors propose is a feedback loop between biology and geochemistry. The ink’s inherent acidity, maintained by residual iron sulfate and the oxidation of iron-tannin complexes, selects for acid-tolerant microorganisms. As fungi and bacteria metabolize the organic binders and interact with the inorganic components, they alter local pH and redox conditions, releasing iron from organic complexes and supplying it to solution. When evaporation concentrates the pore solutions during drying cycles, jarosite precipitates. When humidity rises and conditions shift, the same microbes help dissolve the mineral again, translocating its elements. Each cycle leaves the ink paler and the document more fragile.

This finding reframes a long-standing conservation problem. Ink corrosion has traditionally been treated as a purely chemical threat, managed through deacidification, phytate treatments to complex free iron ions, and strict humidity control. The demonstration that living communities of extremophilic microorganisms participate in the mobilization of iron and sulfate means that microbial management may need to become part of the conservation toolkit. It also explains why laboratory reconstructions of jarosite formation in inks have been inconclusive: without the microbial actors, the full sequence of dissolution, translocation, and reprecipitation cannot be reproduced.

The analytical approach itself is a model for modern heritage science. Micro-Raman spectroscopy allowed the team to identify jarosite and distinguish its potassium, sodium, and hydronium varieties directly on the manuscript without sampling. Scanning electron microscopy paired with energy-dispersive X-ray spectroscopy revealed the crystal morphologies and their elemental signatures, while metagenomics uncovered the taxonomic composition of the microbial community without the need for cultivation, which is essential when the organisms in question are adapted to conditions nearly impossible to replicate on a petri dish. Together, these techniques connected the mineralogical evidence to its biological drivers.

Beyond the archive, the study resonates with research far from the library stacks. Jarosite is a hallmark of acid sulfate environments on Earth, from mine tailings to volcanic hot springs, and its detection on Mars has been interpreted as evidence of ancient acidic water. The Italian manuscript demonstrates that jarosite can form in a human-made, organic-rich microenvironment over historical timescales, provided acidity, iron, and sulfate are available and wetting-drying cycles concentrate the solutions. That a 17th-century scribe’s ink became a natural laboratory for the same geochemistry seen in planetary science is a striking reminder of how universal these processes are.

For the curators and conservators who steward Europe’s documentary heritage, the message is both sobering and actionable. The fading of iron gall ink is not a single chemical event but an ongoing ecological and mineralogical process, one in which acid-loving fungi such as Geotrichum and Coniochaeta and their bacterial companions continuously reshape the ink’s mineralogy. Understanding jarosite precipitation, dissolution, and translocation as coupled biological and inorganic phenomena offers a path toward interventions that address the microbial community as well as the chemistry, potentially slowing the disappearance of texts that have survived centuries of war, humidity, and neglect, only to be threatened by organisms small enough to live inside a single stroke of a pen.

Subject of Research: Microbial colonization of acidic historic iron gall ink and the precipitation, dissolution, and translocation of jarosite

Article Title: Extremophilic microorganisms colonization of acidic historic ink with precipitation, dissolution and translocation of jarosite

Article References: Maisto, F., Pin, L., Pavlović, J., Biocca, P., Bicchieri, M., Cuadros, J., Pangallo, D., & Pinzari, F. (2026). Extremophilic microorganisms colonization of acidic historic ink with precipitation, dissolution and translocation of jarosite. npj Heritage Science. https://doi.org/10.1038/s40494-026-02969-8

Image Credits: AI Generated

DOI: 10.1038/s40494-026-02969-8

Keywords: iron gall ink, jarosite, extremophiles, acidophilic fungi, Geotrichum, Coniochaeta, heritage science, manuscript conservation, micro-Raman spectroscopy, metagenomics, SEM-EDS, mineral dissolution

To understand why this matters, it helps to look at how surface chemistry is currently modeled. In surface complexation modeling, or SCM, the standard workhorse for describing ion adsorption at mineral-water interfaces, heterogeneity is handled by dividing a surface into distinct classes of reactive sites. Each site class is assigned its own fixed equilibrium constant or rate constant, and the probabilities attached to those classes reflect how common each type of site is on the surface. Classic formulations such as the constant capacitance model, the diffuse layer model, and the triple layer model all assume that the total free energy of ion adsorption is simply the sum of a chemical adsorption term and a Coulombic electrostatic term. More sophisticated frameworks, including the Double Diffuse Layer Model and the charge distribution CD-MUSIC model, can incorporate multiple site types, including high-affinity binding sites attributed to defects or impurities. But in all of these approaches, the chemical descriptors themselves remain single fixed numbers.

The Ilgen team argues that this is precisely where the conventional approach falls short. Their proposed probabilistic framework differs fundamentally by suggesting that the chemical descriptors, such as equilibrium constants and rate constants, should themselves be modeled as probability distribution functions rather than constants. The probabilities in existing multi-site models describe the likelihood of encountering each site type, not variability in the chemical properties of those sites. The distinction sounds subtle, but it changes what the model is capable of expressing. By retaining the full probability distribution at the continuum scale, rather than condensing it into a single averaged value, the framework aims to capture the complexity of heterogeneous and dynamic interfacial systems that a point value inevitably erases. The authors acknowledge that this concept has not yet been incorporated into existing modeling codes and remains largely unexplored in the literature, which is part of why the exchange with their critics has been so spirited.

The deeper issue, according to the reply, is a thermodynamic one. Standard reactive transport models describe equilibrium and kinetic processes using equations that assume well-mixed, homogeneous systems, where the chemical potential of a species can equalize across the domain. Equilibrium constants enter mass action equations to calculate species concentrations, and rate constants enter the rate laws that govern mineral dissolution. These constants are typically derived from laboratory measurements or thermodynamic relationships that presuppose uniformity. Real solid surfaces violate that assumption. Unlike gases or aqueous solutions, where equilibration of chemical potential can plausibly occur, mineral surfaces can vary compositionally and structurally at the atomic scale. Local environments and energetic contributions fluctuate from one location to another, producing variations in chemical potentials and reaction parameters even among sites that are nominally identical.

The evidence for this variability is concrete. Surface charge distributions on oxides have been shown to be heterogeneous, with individual sites dynamically flickering between neutral and protonated or deprotonated states. Spatially resolved measurements of calcite dissolution rates reveal Gaussian-like distributions of rates across a single crystal surface, with variability that persists over time and across different surface locations even when chemical conditions are held constant. If the well-mixed assumption held, those distributions would remain consistent in space and time. Instead, the observed spread indicates that the assumption breaks down. The authors frame the logic in terms of activation energies: when the distribution of activation energies across a surface is narrow, a single rate constant derived from it closely approximates the system’s behavior. But when the distribution is broad or multi-modal, or when spatial heterogeneity creates distinct domains with different local distributions, no single rate constant can capture the complexity. Atomic-scale defects, strain, impurities, and differences in the local molecular environment all conspire to produce a distribution of rate constants rather than a single value.

The team’s proposed remedy is to represent equilibrium constants and rate constants as time-dependent probability distribution functions that capture both spatial and temporal variability. A promising mathematical tool for this task, they argue, is the Fokker-Planck equation, a mainstay of statistical physics that describes how the probability density of a variable evolves under the combined influence of deterministic drift and stochastic fluctuations. Applied to interfacial chemistry, the equation could track the evolution of a chemical descriptor such as a surface site acidity constant, accounting for both systematic changes and random noise affecting surface properties. The approach has precedent elsewhere. In heterogeneous catalysis, probabilistic treatments based on Fokker-Planck theory have already been proposed to describe variations in binding energies between catalysts and reactants, and statistical treatments of distributed binding energies have been used to analyze the activity and durability of electrocatalysts.

Support for the probabilistic view also comes from reactive transport modeling itself. Recent work has shown that models incorporating surface morphology descriptors, such as surface slope as a proxy for kink site density, improve the accuracy of reactive transport simulations by linking local structural variability to distributions of activation energy. These developments suggest that the information needed to populate probabilistic descriptions already exists in experimental and computational datasets; what is missing is a modeling infrastructure designed to carry distributions through continuum-scale calculations rather than collapsing them at the parameterization stage. The authors are explicit that probability distributions may not be necessary for surfaces known to possess a single chemically active site, but they contend that such distributions provide a valuable framework for representing uncertainty and heterogeneity in the far more common case of complex, defective surfaces.

In responding to the specific critiques raised in the comment, the authors report that they find no major contradictions or inaccuracies between the comment and their own writing. They concede that chemical adsorption energies and Coulombic energies are often treated as constants in SCMs, but they point out that these values in reality vary with surface site type, coverage, solution composition, and pH. Their argument is that these variations should be represented as distributions rather than fixed constants, even for identical site types, because of local energetic fluctuations. On the question of ion pairing at surfaces, they acknowledge that current SCMs can consider adsorption products involving ion pairs, but they maintain that accurately predicting changes in ion pairing due to surface effects remains challenging. Surface-induced shifts in solvation properties alter the equilibrium constants for ion pairs, and these effects are not yet fully captured by existing models, a limitation that the authors say reinforces the need for probabilistic frameworks.

What emerges from the exchange is a vision of interdisciplinary collaboration as the enabling condition for this shift. The authors emphasize that progress will require expertise spanning chemistry, statistics, applied mathematics, computer science, artificial intelligence-enhanced data analysis, and engineering, all aimed at developing innovative tools that accurately capture the chemistry of solid-water interfaces in continuum models. That breadth is not accidental. Representing time-dependent distributions of chemical descriptors within reactive transport codes poses substantial numerical and statistical challenges, from sampling high-dimensional parameter spaces to propagating uncertainty through coupled reaction and transport equations. The payoff, however, could be transformative for a range of fields that depend on predictive models of fluid-solid interactions, including geochemistry, catalysis, chemical separations, corrosion science, and energy storage.

Whether the broader community embraces the probabilistic paradigm remains to be seen, but the stakes of the debate are easy to state. Continuum-scale models built on fixed constants inherit the limitations of the near-ideal, chemically homogeneous surfaces for which those assumptions were developed. As experimental techniques resolve ever finer details of surface structure and dynamics, the gap between what can be measured at the molecular scale and what can be represented at the continuum scale has widened. The reply by Ilgen and colleagues is an argument that closing this gap requires more than better parameters; it requires a different mathematical language, one in which variability is not an error term to be minimized but a fundamental property to be preserved. For anyone who cares about predicting how minerals dissolve, how contaminants bind, or how catalysts age, the outcome of this debate will shape the models they use for years to come.

Subject of Research: Probabilistic representation of interfacial reactivity in continuum-scale models of solid-water interfaces

Article Title: Reply to: Should we return to probability distributions to represent interfacial reactivity?

Article References: Ilgen, A. G., Borguet, E., Geiger, F. M., Gibbs, J. M., Grassian, V. H., Jun, Y.-S., Kabengi, N., & Kubicki, J. D. (2026). Reply to: Should we return to probability distributions to represent interfacial reactivity?. Nature Communications, 17(1), Article 10217. https://doi.org/10.1038/s41467-026-78021-x

Image Credits: AI Generated

DOI: 10.1038/s41467-026-78021-x

Keywords: interfacial reactivity, surface complexation modeling, reactive transport, probability distributions, mineral dissolution, calcite, Fokker-Planck equation, surface heterogeneity, geochemistry, chemical kinetics, heterogeneous catalysis, Nature Communications

The review’s central argument is that the success or failure of CO2 flooding projects is decided at scales far smaller than any drilling engineer can see. When CO2 dissolves into crude oil, it weakens the van der Waals forces between hydrocarbon molecules, causing the oil to swell and its viscosity to plummet. In one set of high-pressure experiments on North China Oilfield crude at 108 degrees Celsius, CO2 dissolution expanded the oil volume by 45 percent while cutting viscosity by 64.2 percent and density by 16.4 percent. Molecular dynamics simulations explain why: small CO2 molecules wedge themselves between large hydrocarbon chains, replacing strong hydrocarbon–hydrocarbon attractions with weaker hydrocarbon–CO2 interactions, widening molecular spacing and lowering internal friction. The result is a fluid that flows far more readily through the tortuous pore throats of a reservoir.

That viscosity reduction is only part of the story. Under supercritical conditions—above roughly 31 degrees Celsius and 7.4 megapascals—CO2 behaves like a dense liquid with the diffusivity of a gas, allowing it to selectively extract light and intermediate hydrocarbon components from crude oil. Laboratory studies report that at 20 megapascals, supercritical CO2 can strip more than 60 percent of light components below C20 from the oil phase, sharply lowering interfacial tension and pushing the system toward miscibility, the condition in which gas and oil blend into a single phase and capillary resistance essentially vanishes. Achieving miscibility depends on the minimum miscibility pressure, a threshold the review identifies as a critical design parameter. Researchers have found they can lower that threshold using CO2-soluble polymers with oxygen-containing functional groups, which reduced it by 10 to 19.4 percent in recent experiments, and even by applying a direct-current electric field that converts heavy oil components into lighter ones and cut the miscibility pressure from 22.5 to 21.6 megapascals in one tight-sandstone study.

In shale reservoirs, where much of the oil is adsorbed onto organic kerogen and clay surfaces rather than sitting freely in pores, competition becomes the dominant mechanism. CO2 molecules, with their smaller diameter and stronger adsorption affinity for kerogen, preferentially occupy the wall sites and displace adsorbed hydrocarbons into the mobile phase. Simulation work shows the kerogen–CO2 interaction energy exceeds the kerogen–hydrocarbon interaction, driving a spontaneous molecular swap that liberates trapped oil while simultaneously sequestering CO2 in the adsorbed state—a rare example of a single process delivering both enhanced production and permanent storage. The advantage is conditional, however: molecular studies reveal that competitive adsorption intensifies at particular pore sizes, peaking near one nanometer, and that adsorption strength varies with temperature, peaking around 393 kelvin, before declining.

The review also devotes extensive attention to the aqueous phase, which acts as both a helper and a saboteur. CO2 dissolved in formation water forms weak carbonic acid, and simulations of blind-ended nanopores show the gas must first diffuse into the water film coating the rock, disrupt its hydrogen-bonded network, and rupture it before it can reach and mobilize oil trapped in dead-end pores. In one molecular dynamics study, water-film rupture occurred within a window of just a few picoseconds once CO2 intrusion began, opening a continuous mass-transfer pathway. Meanwhile, the water phase performs a valuable stabilizing role at the reservoir scale: by occupying pore throats and generating the Jamin effect—the blocking of flow channels by trapped droplets—it suppresses the gas channeling that otherwise lets injected CO2 bypass large volumes of oil. Water-alternating-gas injection schemes, in which slugs of water and CO2 are cycled, consistently outperform continuous gas injection in flow control and total recovery.

Yet the same water film can be an obstacle. Molecular simulations of a CO2–water film–oil–rock system found that a continuous one-nanometer-thick water film compressed crude oil molecules toward the pore center, raising the equivalent oil density by 86.9 percent and cutting its diffusion coefficient to 72.3 percent of its no-film value. The reviewers note that the field still lacks a unified quantitative criterion for when a water film shifts from barrier to conduit, and they flag high-salinity brines as an untested complication, since most simulations use idealized pure water.

The third pillar of the analysis concerns the rock itself. Carbonic acid reacts with reservoir minerals through dissolution, precipitation, and ion exchange, dynamically reshaping the pore network. Feldspars and carbonate cements dissolve preferentially, enlarging pores and throats and, in tight sandstones, raising porosity and permeability by roughly 3.2 and 9.9 percent respectively when injection pressure climbed from 15 to 25 megapascals. At Iceland’s CarbFix basalt project, field monitoring confirmed that more than 95 percent of injected CO2 was mineralized into solid carbonate within two years, demonstrating the potential for near-permanent sequestration in reactive rock types. But the review is candid about the risks: after sixty days of exposure to CO2-saturated brine, limestone lost 79.3 percent of its uniaxial compressive strength, a finding with serious implications for caprock integrity, while migrating kaolinite and other secondary clays can clog pore throats and reverse the permeability gains achieved by dissolution.

Wettability—the preference of a rock surface to be in contact with either oil or water—emerges as another linchpin. Nanoscale treatments with carbon nanodots shifted an oil-wet carbonate surface from a 122-degree contact angle to a weakly water-wet 86 degrees, and the resulting hydrophilic pore network generated capillary pressures that act as microscopic carbon seals, opposing CO2 migration as formation pressure declines. The reviewers argue that such hydrophilic conditions, if reliably engineered, could be the key to long-term storage security, though they caution that capillary trapping works against recovery during injection and for containment during storage—a duality that field designers must manage.

What ultimately distinguishes this review is its refusal to treat the three subsystems in isolation. The authors present an integrated conceptual framework tracing how CO2 front migration couples CO2–oil swelling and extraction, CO2–water acidification and film rupture, and CO2–rock mineral alteration across space and time. Their diagnosis of the field’s remaining gaps is blunt: most studies examine single mechanisms under idealized conditions, the transition conditions between competing effects are unknown, and no rigorous quantitative mapping exists from nanoscale mechanisms to macroscopic indicators such as recovery factor, gas-channeling risk, and sequestration stability. Heavy-component readsorption during depressurization, asphaltene precipitation triggered by light-component extraction, and clay-driven permeability damage in high-clay reservoirs all remain poorly predicted.

The proposed path forward is fourfold: quantifying the coupling among dissolution, extraction, adsorption, and mass transfer; building full-cycle dynamic models grounded in real reservoir temperatures, pressures, and salinities; establishing critical conditions for the dissolution–precipitation competition in multi-mineral rocks; and constructing cross-scale correlation models that link molecular behavior to field performance. For an industry and a climate agenda both betting heavily on carbon capture, utilization, and storage, the message is clear: the technology’s future will be won or lost not in the injection wellhead but in the picoseconds of molecular exchange and the microns of mineral dissolution unfolding deep in the reservoir. Making those invisible processes predictable, the authors conclude, is the core scientific foundation for scaling CCUS from pilot projects to planetary impact.

Subject of Research: Microscopic oil-water-rock interaction mechanisms during CO2 enhanced oil recovery and geological carbon storage

Article Title: Microscopic mechanisms of oil-water-rock interactions during CO2 enhanced oil recovery and storage: a comprehensive review

Article References: Qiao, Y., Han, Y., Deng, B., Kong, Y., Ma, H., & Fang, R. (2026). Microscopic mechanisms of oil-water-rock interactions during CO2 enhanced oil recovery and storage: a comprehensive review. Journal of Saudi Chemical Society, 30(5), Article 69. https://doi.org/10.1007/s44442-026-00124-3

Image Credits: AI Generated

DOI: 10.1007/s44442-026-00124-3

Keywords: CO2 enhanced oil recovery, carbon capture utilization and storage, CCUS, oil-water-rock interactions, molecular dynamics simulation, minimum miscibility pressure, wettability alteration, mineral dissolution, carbon sequestration, nanopore mass transfer, water-alternating-gas injection, geological storage

Enhanced rock weathering has long been touted as one of the most promising carbon removal strategies because it leverages a process that has regulated Earth’s climate for billions of years. When rainwater, slightly acidified by dissolved carbon dioxide, percolates through silicate rocks such as basalt, the carbonic acid pulls calcium and magnesium ions out of the mineral lattice. These ions ultimately combine with carbonate in oceans and soils, forming stable minerals that sequester carbon for tens of thousands of years or longer. The catch is speed: natural weathering operates on geological timescales, and even crushed and spread basalt can take years to decades to absorb a meaningful fraction of the carbon dioxide applied to farmland alongside it.

The new study attacks that bottleneck at its chemical root. Siderophores are small organic molecules with an extraordinary affinity for iron, capable of prizing the metal out of mineral surfaces even at vanishingly low concentrations. In doing so, they destabilize the crystal structures of iron-bearing silicates, exposing fresh surfaces to attack by carbonic and organic acids. Microbiologists have understood this mechanism for decades, but the idea of engineering microbes to produce siderophores at industrial scale for climate purposes remained largely theoretical—until now.

The research team used synthetic biology tools to upregulate the biosynthetic gene clusters responsible for siderophore synthesis in their bacterial strain, carefully balancing the metabolic burden that enhanced production imposes on the cells. Overproducing secondary metabolites can cripple microbial growth, so the engineering had to thread a needle between maximizing output and keeping the organisms viable. The resulting strains secreted siderophore concentrations several times higher than wild-type counterparts, and when applied to crushed basalt in controlled experiments, the treated microbial communities accelerated mineral dissolution rates well beyond what natural weathering achieves.

Measurements of dissolved ions released from the rock confirmed that the engineered bacteria were genuinely driving enhanced weathering rather than simply growing more prolifically. Elevated concentrations of calcium, magnesium, and silicon in solution served as chemical fingerprints of accelerated mineral breakdown. The researchers also tracked the fate of the released cations, which are the direct precursors of the carbonate species that permanently store carbon dioxide, providing a quantitative link between microbial activity and the theoretical carbon removal potential of the system.

What makes the approach especially attractive is its compatibility with existing agricultural practice. Enhanced rock weathering proposals typically involve spreading crushed basalt—a byproduct of mining and quarrying industries—across croplands, where it can also supply nutrients and raise soil pH. Adding engineered bacteria or their siderophore products to this workflow requires no new land, no exotic infrastructure, and no dramatic change in farm operations. The biological catalyst simply boosts the yield of carbon removal per tonne of rock applied, improving the economics of a scheme whose costs have otherwise been dominated by the grinding and transport of stone.

The carbon math is compelling if the laboratory results translate to the field. A single tonne of basalt can, in principle, absorb on the order of hundreds of kilograms of carbon dioxide over its weathering lifetime. If microbial siderophores can compress that timeline or increase the fraction of rock that fully dissolves, the effective carbon removal capacity of each tonne of applied rock rises accordingly, and with it the viability of gigatonne-scale deployment scenarios that climate models suggest will be necessary alongside deep emissions cuts.

Significant hurdles remain before engineered weathering microbes see real-world deployment. Field soils are wildly heterogeneous environments where introduced strains face competition from established microbial communities, predation, and fluctuating moisture and temperature. Regulators will also demand rigorous assessment of any genetically modified organism released into open agricultural systems, and researchers will need containment strategies or self-limiting designs to address ecological concerns. The team acknowledges that scaling from petri dishes and reactor columns to windswept fields is the defining test ahead.

Still, the study marks a striking convergence of biotechnology and geoscience, suggesting that the tools of synthetic biology can be pointed not merely at medicines and materials but at the planet’s own climate-regulating chemistry. If follow-up field trials vindicate the laboratory findings, the humble bacterial molecules that microbes have used for eons to feed on rock-bound iron could become one of the cheapest levers available for scrubbing carbon dioxide from the sky—and a vivid reminder that some of the most powerful climate technologies may already be alive in the soil beneath our feet.

Subject of Research: Engineered bacterial siderophore production for enhanced silicate rock weathering and carbon dioxide removal

Article Title: Engineered bacterial siderophore production accelerates rock weathering for carbon removal

Article References: Dalvie, N. C., Jalihal, A. P., Fitzgibbon, A., Böhnke, J.-T., Hijaz, M., Justman, Q. A., Davis, S. J., Silver, P. A., & Springer, M. (2026). Engineered bacterial siderophore production accelerates rock weathering for carbon removal. Nature Biotechnology. https://doi.org/10.1038/s41587-026-03288-w

Image Credits: AI Generated

DOI: 10.1038/s41587-026-03288-w

Keywords: enhanced rock weathering, siderophores, carbon removal, synthetic biology, basalt, silicate minerals, carbon dioxide sequestration, soil microbiology, climate engineering, mineral dissolution, biogeochemistry, Nature Biotechnology