As of snapshot 27745 under ledger-default@0.3.0. Counts by assessment state, descriptive only: no topic is scored.
2 Insufficient evidence3 Leans supported1 Not assessed38 Supported
| Claim | Type | Assessment |
|---|
| In the Mississippi River Basin, agricultural liming acted as a net carbon sink over the past century relative to the study’s anthropogenic-acidity counterfactual. | CAUSAL | Leans supported |
| Across four widespread permafrost soil types over 389 days, realistic active-layer inocula increased CO2 or N2O production less than a diverse multifunctional microbial community and did so inconsistently. | OBSERVATIONAL | Supported |
| Under the study’s 2025–2100 SSP5-8.5 scenario combining projected precipitation and socioeconomic conditions, 32.1% of global land was classified as high priority for new gauges, versus 17.7% under SSP1-2.6. | QUANTITATIVE | Supported |
| Under 2018 conditions, land-use disturbance corresponds to a potential European wetland soil-carbon storage difference of 0.8–4.9 Gt CO2-equivalent, not an annual emissions rate. | QUANTITATIVE | Leans supported |
| The study estimates that anthropogenic disturbance affects 20.4 ± 3.4% of Europe’s wetland area, with 13.6 ± 3.0% classified as most disturbed. | QUANTITATIVE | Leans supported |
| Under an intermediate future-warming scenario, the study projected that cloud-condensation-nuclei concentrations associated with new-particle-formation activity could increase by 3–16% in the High Arctic but decline by 15–31% in the Maritime Arctic by 2090–2100. | FORECAST | Not assessed |
| A harmonized Arctic aerosol analysis using observations spanning 2003–2024 identified three regimes with contrasting contributions of new particle formation to cloud condensation nuclei populations: the High Arctic, Maritime Arctic and Continental Arctic. | OBSERVATIONAL | Insufficient evidence |
| GenFocal is an AI framework that generates fine-scale weather from coarse climate projections without requiring temporally paired simulated and observed events during training, and it synthesizes long-lived hazards such as heatwaves and tropical cyclones. | OBSERVATIONAL | Insufficient evidence |
| The study’s combined revisions reduced its expected 2025 social cost of CO2 from US$204 to US$179 per ton. | QUANTITATIVE | Supported |
| The study’s updated agricultural damage function reduced estimated agricultural damages from US$95 to US$29 per ton of CO2. | QUANTITATIVE | Supported |
| The study estimated 2025 heat-related labor-productivity damages at US$41 per ton of CO2, with a 90% confidence interval of US$1–108. | QUANTITATIVE | Supported |
| In the study, gradual acidification produced weaker phenotypic and genomic shifts that aligned more closely with natural ocean conditions. | OBSERVATIONAL | Supported |
| In the study, abrupt acidification produced diatom growth and carbon-fixation responses up to 15% larger than under gradual acidification. | QUANTITATIVE | Supported |
| The study compared abrupt and gradual CO2 increases from 440 to 1000 ppm across 1100 generations of the marine diatom Chaetoceros muelleri. | QUANTITATIVE | Supported |
| Hurricane Helene produced a short-term spike in microplastic deposition at three Western North Carolina sites, accounting for 18.8%, 4.2%, and 4.6% of annual deposition at the sites. | QUANTITATIVE | Supported |
| The study’s climate-space analysis found that the regional tree flora was progressively filtered toward colder and drier conditions, alongside losses of heat-tolerant lineages. | OBSERVATIONAL | Supported |
| The study estimated the PM2.5-productivity relationship using an instrumental-variable design combining air-quality data with bibliographic publication data. | OBSERVATIONAL | Supported |
| In the study’s analyses, higher PM2.5 pollution was associated with reduced academic working hours, increased hospital visits and fewer scholarly collaborations. | OBSERVATIONAL | Supported |
| In the study’s China-wide estimate, a 1% increase in PM2.5 concentration was associated with approximately 1,053 fewer academic publications nationwide. | QUANTITATIVE | Supported |
| A 98-day river alkalinity-enhancement trial in Norway reported 250 ± 30 tonnes CO2-equivalent of gross carbon dioxide removal after adding 1,480 tonnes of calcite, with no significant increase in most measured adverse water-quality indicators apart from phosphate. | QUANTITATIVE | Supported |
| In a 39-day North Sea mesocosm experiment, phytoplankton bloom dynamics were largely unaffected by alkalinity additions up to about 700 micromoles per kilogram, whereas additions of at least about 900 delayed bloom development by 6 to 9 days and reduced some particulate organic matter components. | QUANTITATIVE | Supported |
| In an 11.5-hectare, four-year Welsh reforestation field trial, crushed silicate rock increased aboveground carbon stocks by 27% in broadleaf stands but not significantly in spruce, while soil inoculation effects varied by tree species and diminished over time. | QUANTITATIVE | Supported |
| For agricultural lime added since 1900 in the Mississippi River Basin, approximately 90% of its ideal CO2-removal potential—about 0.44 GtCO2—was estimated to have been realized at catchment scale, with a decadal-scale lag. | QUANTITATIVE | Supported |
| The Nature Geoscience analysis estimated that rain-induced dilution accounts for about two-thirds of the additional ocean CO2 uptake caused by rain, through freshening-induced carbonate-system repartitioning. | QUANTITATIVE | Supported |
| In the study, trees exposed to long-term experimental drought had approximately 26.5% smaller crown area per unit stem diameter than untreated controls. | QUANTITATIVE | Supported |
| After the 2023 El Niño drought, trees exposed to long-term experimental drought recovered transpiration to pre-drought levels after 143 days, while untreated control trees reached 77.5% of pre-drought levels during the observation period. | QUANTITATIVE | Supported |
| In the study’s 2023 El Niño drought comparison, trees exposed to long-term experimental drought reduced transpiration by 25%, while untreated control trees declined by up to 54% relative to pre-drought levels. | QUANTITATIVE | Supported |
| Century-scale records and reactive-transport modelling indicate that agricultural liming acted as a net carbon sink in the Mississippi River Basin over the past century, after an initial emissions pulse and with a decadal lag. | QUANTITATIVE | Supported |
| The study estimated that current global carbon-budget calculations may underestimate the ocean carbon sink by 10 ± 5% because they omit rain effects. | QUANTITATIVE | Supported |
| A global analysis estimated that rain-induced effects increase ocean carbon uptake by 13.6% relative to a wind-only calculation. | QUANTITATIVE | Supported |
| A boreal-forest analysis found that climate-driven phenological instability produced asymmetric surface-temperature responses: per-unit leaf-area loss warmed more than equivalent leaf-area gain cooled, with median warming roughly 2.0–2.3 times stronger in spring and autumn and about an order of magnitude stronger in winter; summer responses were not directionally robust. | QUANTITATIVE | Supported |
| In 389-day incubations across four permafrost types, multifunctional microbial inocula increased carbon-dioxide production, while active-layer inoculation under anoxic conditions quintupled methane production and increased six-month carbon-dioxide-equivalent emissions by 35%. | QUANTITATIVE | Supported |
| An analysis of five gridded surface-temperature datasets found detectable regional warming-rate changes since 1970 in only 4–10% of grid cells, with accelerations and shifts toward warming concentrated mainly at Northern Hemisphere mid-latitudes rather than a detectable global acceleration. | QUANTITATIVE | Supported |
| Alkenone and planktonic-foraminifera proxy records indicate that mid- to late-Holocene summertime cooling in the mid-latitude North Atlantic was stronger in the west than east, increasing the zonal sea-surface-temperature gradient; TraCE-21k simulations did not reproduce this asymmetry. | COMPARATIVE | Supported |
| Nitrogen-isotope measurements from tropical Atlantic sediment-core foraminifera indicate that natural nitrogen fixation was substantially lower during the warm late Pliocene and increased into the cooler Pleistocene, with Caribbean variability later tracking the roughly 41,000-year obliquity cycle. | HISTORICAL | Supported |
| A model-data synthesis combining long-run Miocene simulations with benthic foraminiferal oxygen-isotope data estimated the Miocene Climatic Optimum global mean surface temperature at 7.5 °C above preindustrial, higher than earlier benthic-isotope reconstructions. | QUANTITATIVE | Supported |
| In a 13-year fully factorial grassland field experiment, elevated CO2 and nitrogen enrichment reduced temporal stability under otherwise ambient conditions, whereas warming and reduced rainfall alone increased stability; combined-driver effects were frequently non-additive and changed over time. | COMPARATIVE | Supported |
| Using an instrumental-variable design for Chinese scholars, the study estimated that a 1 μg m−3 increase in annual PM2.5 caused a 0.23% decline in academic publications, with larger effects during heavy-pollution years. | QUANTITATIVE | Supported |
| Mojave Desert mineral-rich soils adsorbed more atmospheric CO2 as they cooled at night and desorbed it as they warmed during the day; the study's global extrapolation estimated 1–3 gigatons of carbon moving into and out of desert soils annually, based only on Mojave soils. | QUANTITATIVE | Supported |
| A resurrection experiment in common morning glory found that changing genetic covariance structures increasingly constrained evolutionary trajectories, limiting adaptation of flowering phenology despite selection for rapid change. | CAUSAL | Supported |
| The study reported that the CMIP6 inventory overestimated black-carbon radiative forcing by 45%. | QUANTITATIVE | Supported |
| A study using a localized black-carbon inventory and revised health-risk function estimated that over 540,000 premature deaths were attributable to black carbon in China in 2015. | QUANTITATIVE | Supported |
| The FourCastNet paper reported that its neural-operator weather model generated a week-long forecast in under two seconds and was about 45,000 times faster than traditional numerical weather prediction on a node-hour basis. | QUANTITATIVE | Supported |
| A September 2026 guest post said the group used Neural Operators to train a high-resolution AI weather model more than five years earlier and reported it was tens of thousands of times faster. | TEXTUAL | Supported |
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