Modern Climate Research Articles

СВЯЗИ МЕЖГОДОВЫХ ВАРИАЦИЙ СРЕДНЕМЕСЯЧНЫХ УРОВНЕЙ КАСПИЯ, А ТАКЖЕ СУММ АТМОСФЕРНЫХ ОСАДКОВ В ЕГО БАССЕЙНЕ И ИХ ИЗМЕНЕНИЯ ПРИ СОВРЕМЕННОМ ПОТЕПЛЕНИИ КЛИМАТА

In the modern period, the level of the Caspian Sea water surface is rapidly decreasing, which creates significant problems for the population and economy of all countries of the Caspian region. Therefore, improvement of the methods for forecasting its further changes is an urgent problem of hydrology, meteorology and ecology. It is generally accepted that the main reasons for the current decline in the Caspian Sea level are the influence of anthropogenic factors and climatic changes on the dynamics of its water balance components. A significant component of the incoming part of this balance is the amount of precipitation falling in the territory of the Caspian basin. One of the methods used for forecasting the Caspian Sea level is multiple regression analysis. The validity of the forecasts obtained with its help depends on the significance of the relationships between the studied process in the future and the factors monitored in the present and in the past that are taken into account in their development. The article assesses the significance of statistical correlations between interannual variations in the average monthly background levels of the Caspian Sea and the dynamics of precipitation amounts in its basin, as well as its changes during the period of modern climate warming. The ERA 5 reanalysis information was used as factual material on precipitation. Information on the levels was obtained from literary sources. It was found that in the period of 1979-2021 the conclusion on the significance of the relationships under consideration was characterized by the reliability of at least 0.95 only if the changes in precipitation amounts corresponded to May. As the time shift between the analyzed process and this factor increases from 0 to 36 months, their correlation remains positive and significant, but slightly weakens. During the period of modern climate warming, the revealed correlation also became weaker, which allows us to doubt its significance even in the near future. There were also identified the Caspian basin areas for which, on the contrary, the considered relationship strengthened during the same period. It implies that the probability of the scenario in which they remain significant in the future is higher than that of other scenarios. Therefore, it is reasonable to take the identified relationships into account when forecasting changes in the average level of the Caspian Sea.

Arctic and Barents Sea ice extent variability and trends in 1979–2022

The aim of the paper is to assess interannual and decadal variability of the Barents Sea and Arctic ice extent in various seasons for the period from 1979 to 2022.The material for the study was satellite data on the Barents Sea and Arctic ice extent, climate indices, oceanographic data obtained during surveys in the Barents Sea by PINRO and other available information on hydrometeorological conditions of the sea in 1979–2022.Methods of descriptive statistics as well as comparative, correlation, regression, harmonic and cluster analyses were applied.Results: The year-to-year changes in the Barents Sea and Arctic ice extent in various seasons are described for 1979–2022. The modern climate changes, manifested in substantial warming of air and water masses in the Arctic, resulted in a considerable ice extent reduction in the studied areas in recent decades. Well-marked negative trends took place in all months and seasons. The annual mean ice extent was decreasing at a rate of 532 thousand km2 per decade in the Arctic, and at a rate of 105 thousand km2 per decade in the Barents Sea. Over the past 40 years, the ice extent in the Arctic has decreased by 14%, and in the Barents Sea — by half (by 51%), while the ice-free period duration has increased in the Barents Sea from one to three months. Hydrometeorological parameters were identified that are most closely related to the ice extent in the Arctic (|r| ≥ 0.40) and Barents Sea (|r| ≥ 0.60). Reliable regression models were developed that explain 45.2 and 88.0% of its variability, respectively. The contribution of individual factors to the ice extent variability explained by regression equations was quantitatively assessed, and the leading role of air temperature was noted.Practical significance: The obtained results are useful for a better understanding of the climate processes occurring in the Arctic and Barents Sea in recent decades and can be used to assess the impact of climate changes on the main objects of Russian fishery in these areas.

Late Miocene transformation of Mediterranean Sea biodiversity.

Understanding deep-time marine biodiversity change under the combined effects of climate and connectivity changes is fundamental for predicting the impacts of modern climate change in semi-enclosed seas. We quantify the Late Miocene-Early Pliocene [11.63 to 3.6 million years (Ma)] taxonomic diversity of the Mediterranean Sea for calcareous nannoplankton, dinocysts, foraminifera, ostracods, corals, molluscs, bryozoans, echinoids, fishes, and marine mammals. During this time, marine biota was affected by global climate cooling and the restriction of the Mediterranean's connection to the Atlantic Ocean that peaked with the Messinian salinity crisis. Although the net change in species richness from the Tortonian to the Zanclean varies by group, species turnover is greater than 30% in all cases, reflecting a high degree of reorganization of the marine ecosystem after the crisis. The results show a clear perturbation already in the pre-evaporitic Messinian (7.25 to 5.97 Ma), with patterns differing among groups and subbasins.

Потенциальный биоклиматический ареал Ephedra distachya L.

The paper presents modern data on the distribution of Ephedra distachya L. an attempt was made to model the bioclimatic range of the species using the maximum entropy method and compare the obtained data with the range defined in the report «Flora of the USSR», taking into account additions from the monographs «Flora of the European Part of the USSR» and «Geography of Trees plants of the USSR». MaxEnt modeling of the potential range of E. distachya was carried out on the basis of the herbarium collections of Saratov State University (SARAT), the GBIF database and the Plantarium electronic atlas. A total of 6973 species location points were used. In accordance with the obtained bioclimatic model, in the modern climate the most favorable conditions for the existence of the species are on the coasts of the Black, Azov, Marmara, Mediterranean and Caspian Seas, in the territories of the former AzSSR, Ukrainian SSR and Georgian SSR. In the RSFSR (modern Russian Federation), the species is optimally located in the Volga, North Caucasus and Southern federal districts. A sharp narrowing of the potential range is observed in the Ural and Central Federal Districts of the Russian Federation, as well as in the territories of the former TurSSR and KazSSR. The accuracy of the model is confirmed by the high AUC (Area Under Curve) score, which is 0.933 for training data and 0.930 for test data. Climatic parameters have been established that influence the distribution of the species, in which its existence is optimal. The greatest contribution to the construction of the model after permutation was made by isothermality (32%), average annual temperature (23.1%), average monthly daily temperature amplitude (12.4%), as well as the maximum temperature of the warmest month (11.6%). A correlation analysis of the parameters that made the greatest contribution after permutation was carried out. When estimating the error using the jackknife method, a variable (average annual temperature) was obtained that contains the most information that is not in other variables; the exclusion of this variable leads to deterioration of the model.

Dynamic Changes and Influencing Factors Analysis of Groundwater Icings in the Permafrost Region in Central Sakha (Yakutia) Republic under Modern Climatic Conditions

In central Sakha (Yakutia) Republic, groundwater icings, primarily formed by intrapermafrost water, are less prone to contamination and serve as a stable freshwater resource. The periodic growth of icings threatens infrastructure such as roads, railways, and bridges in permafrost areas. Therefore, research in this field has become urgently necessary. This study aims to analyze the impacts of various factors on the scale of icing formation using Landsat satellite data, Gravity Recovery and Climate Experiment (GRACE)/GRACE Follow-On (GRACE-FO) data, Global Land Data Assimilation System (GLDAS) data, and field observation results. The results showed that the surface area of icings in the study area showed an overall increasing trend from 2002 to 2022, with an average growth rate of 0.06 km2/year. Suprapermafrost water and intrapermafrost water are the main sources of icings in the study area. The total Groundwater Storage Anomaly (GWSA) values from October to April showed a strong correlation with the maximum icing areas. Icings fed by suprapermafrost water were influenced by precipitation in early autumn, while those fed by intrapermafrost water were more affected by talik size and distribution. Climate warming contributed to the degradation of the continuous permafrost covering an area of 166 km2 to discontinuous permafrost, releasing additional groundwater. This may also be one of the reasons for the observed increasing trend in icing areas. This study can provide valuable insights into water resource management and infrastructure construction in permafrost regions.

Seasonal cap dynamics at the South Pole of Mars in the 36th Martian year, observed by Tianwen-1

The seasonal variation of the Martian South Polar Seasonal Cap (SPSC) is a significant factor to influence Mars atmospheric cycle, which has been continuously observed in previous missions. The SPSC degrades asymmetrically throughout the Martian seasons. However, developing a general description for this asymmetric recession is challenging, and this is crucial for identifying key stages (timesteps) which represents moments of special attribute throughout the recession. Here, we present the Martian Year 36 (MY36) results from the continuous observation of the Martian SPSC by the Moderate Resolution Imaging Camera (MoRIC) onboard the Tianwen-1 orbiter. A time-series of digital orthophoto maps (DOMs) characterizing the south cap were collected ranging from the solar longitude (Ls) 210° to 332°. A seasonal recession model of the cap was established by incorporating a 5th-order polynomial fitting of the time-series on cap latitude, from which the first derivative (recession rate), second derivative (acceleration), and third derivative (jerk) can be obtained. This methodology enables the extraction of critical timesteps that facilitate the categorization of the recession into distinct phases, each characterized by its recession rate and other factors. By the visual interpretation of remote sensing images obtained by Tianwen-1 and the result of timesteps showed that the pause time of the South Polar Residual Cap (SPRC) is about Ls = 324.5°-328° with an area of 7.9 × 104 km2. The discrepancies between our results and previous investigations indicate that the Martian climate presents inter-annual fluctuations. The MoRIC image data can be used to quantitatively capture the fine recession dynamic of the southern polar cap.The continuous operation of the Tianwen-1 orbiter will enable further data analysis for the dynamics of the Martian polar caps. This will provide observational constraints for Martian climate models and crucial information for the research of the Martian modern climate.

Variability of Ephedra dahurica Turcz. Pollen as an Indicator of Humidity for the Modern Climate of Southeastern Transbaikalia

Variability of Ephedra dahurica Turcz. Pollen as an Indicator of Humidity for the Modern Climate of Southeastern Transbaikalia

Paleoclimate data provide constraints on climate models' large-scale response to past CO2 changes

The paleoclimate record provides a test-bed in which climate models can be evaluated under conditions of substantial CO2 change; however, these data are typically under-used in the process of model development and evaluation. Here, we use a set of metrics based on paleoclimate proxy observations to evaluate climate models under three past time periods. We find that the latest CMIP6/PMIP4 ensemble mean does a remarkably good job of simulating the global mean surface air temperatures of these past periods, and is improved on CMIP5/PMIP3, implying that the modern climate sensitivity of the CMIP6/PMIP4 model ensemble mean is consistent with the paleoclimate record. However, some models, in particular those with very high or very low climate sensitivity, simulate paleo temperatures that are outside the uncertainty range of the paleo proxy temperature data; in this regard, the paleo data can provide a more stringent constraint than data from the historical record. There is also consistency between models and data in terms of polar amplification, with amplification increasing with increasing global mean temperature across all three time periods. The work highlights the benefits of using the paleoclimate record in the model development and evaluation cycle, in particular for screening models with too-high or too-low climate sensitivity across a range of CO2 concentrations.

Assessing Corpsmen Training Needs: Enhanced Medical Readiness in the Indo-Pacific for Near Peer.

Naval operations rely on Corpsmen to provide combat casualty and primary care services to the fleet, including the Fleet Marine Force. The United States faces new conflict challenges with near-peer adversaries in the modern geo-political climate. Corpsmen will likely require new skills to care for patients in anti-access/area-denial regions and transport patients across expansive maritime environments. To help them adapt to these new challenges, we evaluated the need for Corpsmen curriculum reform at the III Marine Expeditionary Force (MEF). This model begins with a general needs assessment to target gaps between the current and ideal approaches identified by the stakeholders. We identified 4 primary stakeholders within the Fleet Marine Force community: Marine Commanders (Society), Marines receiving treatment (Patients), Corpsmen providing care (Health Care Workers), and medical providers supervising Corpsmen (Medical Educators). We invited all ranks from III MEF to participate. The participants were interviewed in a mixture of focus groups and individual interviews in conversational and open-ended discussions. Transcripts of these discussions were analyzed and inductively coded using principles of grounded theory to identify prevailing themes that connected across interviews. The study was exempted by the Institutional Review Board at Naval Medical Center San Diego and Headquarters Marine Corps. The study involved 47 participants, including all stakeholders in III MEF and ranks from E1 through general officers. Through interviews and focus groups, 4 key themes emerged regarding Corpsmen's education: "Training," "Tasking," "Performance," and "Impact". "Training" discussions covered formal education, including gaps in basic training and the applicability of skills in civilian settings. "Tasking" examined daily responsibilities and equipment needs, such as teaching roles and first-responder care. "Performance" highlighted the quality of care and challenges in maintaining skills amid non-clinical tasks. Lastly, "Impact" assessed Corpsmen's influence on mission success and job satisfaction, revealing positive and negative perceptions among participants regarding their role and career prospects. The discussion emphasizes the importance of contextual factors in developing a Corpsmen-based curriculum, focusing on themes such as Training, Performance, and Impact. Tasking highlights critical areas for curriculum development, especially in educating Corpsmen as Educators, Leaders, and First-responder Caregivers. Gaps in training were identified, particularly in Non-trauma and First-responder Care, impacting Corpsmen's ability to handle diseases and injuries independently. Drawing parallels with Community Health Worker and Physician Extender (PE) education paradigms, we suggest adapting existing models to meet Corpsmen's needs. The discussion also delves into the history of employing PEs and developing training programs within the Naval Service. We propose a combination of Community Health Worker and PE-based education to enhance Corpsmen's competency and job satisfaction while facilitating their transition to civilian health care. Standardized curricula and training programs could improve skill transferability and readiness for Corpsmen in both military and civilian settings.

Erroneous thinking on climate change

The ultimate source of the ongoing human-induced climate change must be found within the thinking that guides actions. This human aspect goes outside the laws of natural science. Human thinking as a cause of anthropogenic or industrial climate change is still an under-researched topic. Here, we focus on how humans think about climate change. We use a content-based analysis of the mind to analyze comments in a Finnish online forum, Suomi24. Our immediate findings are that people have errors in reviewing knowledge and constructing information in their mental representations. Discussions are colored by illusions, false claims, incorrect interpretations, mistakes, and opinions to deny facts. Understanding erroneous thinking is crucial, as it helps to identify ways to correct risky thinking and to understand why people do what they do. Ultimately, erroneous thinking is the root cause of the modern climate crisis.

Carbon and oxygen isotopes in mummified wood reveal warmer and wetter winters in the Siberian Arctic 3000 years ago

Paleoclimate reconstructions from the Holocene are important for defining baseline conditions in order to interpret and contextualize the effects of modern climate change. Such records are particularly lacking for Siberia, a region that represents ~ 50% of the Arctic. In addition, the majority of proxy-based paleoclimate reconstructions for the Holocene represent mean annual conditions, and few quantify winter temperature, which is particularly important for predicting the effects of global warming in Arctic environments. Here we provide the first quantitative proxy reconstruction of precipitation and temperature for both summer and winter for 3000 years ago via novel high-resolution intra-annual carbon and oxygen isotope measurements across annual growth rings of fossil wood mummified within the permafrost of far northeastern Siberia. We found that the site experienced greater precipitation year-round (~ 10% increase in summer and ~ 30% increase in winter), cooler summer temperatures, and warmer winter temperatures, compared with today. Our findings indicate that warmer winter temperatures (+ 3.0 °C above early twentieth century values) in the Arctic 3000 years ago drove higher mean annual temperature by up to 1 °C, despite the existence of cooler summers, a similar phenomenon to what is observed within today’s Arctic environments, and past intervals of extreme global warmth.

Factors determining the timing of ice appearance on the Kama Reservoir

The analysis and assessment of the correlations of the ice dates vice the zero-isotherm dates, dates of water temperatures transition through 2 and 3 °C were carried out. The initial data were long-term series of observations of air temperature at weather stations, water temperature and ice dates at the gauge stations of Roshydromet for the whole period of the reservoir existence (1956–2021). As the characteristic under study, the dates of ice formation in autumn were used. Main results: verification of previously obtained correlations on independent data (1996–2021) showed that the accuracy of issued forecasts (P) was decreased by 20% compared with the accuracy on dependent data (1956–1995); an analysis of the whole period applicability (1956–2021) for constructing predictive correlations with an assessment of their justification showed that there was no noticeable refinement. The accuracy of the forecasts based on the dates of water temperatures transition through 3 °C has not changed, while forecasts based on the zero-isotherm dates and the dates of water temperatures transition through 2 °C, has noticeably decreased at all stations; the use of data only for the period of modern climate changes (1996–2021) led to the following: correlations of the ice dates vice the zero-isotherm dates and water temperature through 2 °C did not pass the criteria S and P. This period is characterized by a decrease in the frequency of small forecast errors ( 4–5 days) and an increase in large errors ( 6–11 days) by 2–3 times; a forecast technique is proposed based on the separation of the studied correlations for years with different meteorological conditions in autumn (years with stable cooling and with heat returns). The criterion for using this or that dependence in a particular year is the weather forecast. Forecasts issued according to such dependencies have a higher accuracy.

Environmental and climatic significance of the Pliocene-Pleistocene calcretes in North Africa

The North African calcretes formed during the Plio-Pleistocene are a prominent and stratigraphically significant palaeoclimatic marker. We studied the calcrete along a north–south transect in Tunisia that crosses the climatic boundaries between the latitudes 33° and 37° N to elucidate the palaeoenvironmental and climatic significance of the calcrete for the Plio-Pleistocene. Macroscopic, petrographic, Scanning Electron Microscopy (SEM), and Cathodoluminescence (CL) observations obtained in the field and from thin sections of the non-powdery horizons of all sites allowed to identify 4 facies: Pisolithic (limestones with clast(s) coated by laminae), laminar (limestones with a succession of laminae), massive brecciated (brecciated limestones), and groundwater facies (limestones with no biogenic features). Notably, soil-forming processes were evident at all sites except for those situated further south, which exhibited characteristics indicative of a groundwater environment. The comparison with modern analogues suggests for our study area the climate was similar to modern central Spain (Hot-summer Mediterranean climate Csa) in central Tunisia which is, in turn, similar to the modern climate in North Tunisia. The climate was characterized by strong seasonal contrast: higher winter rainfall than today followed by long dry hot summers modified by a North-South gradient. This gradient was the result of the interplay between westerly winter winds and the orographic effect of the Atlas Mountains confirming the North Atlantic origin of precipitations. We conclude that during the late Pliocene to early Pleistocene, the climate in Northern Africa was more humid than today, with enhanced winter rainfall at all study sites probably at the same time of the establishment of Saharan humid periods. These humid phases may have been long enough, spanning more than 10.000 years, to reduce recharged groundwater salinity and, subsequently, form thick calcareous soil.

Rhizobium Inoculant and Seed-Applied Fungicide Effects Improve the Drought Tolerance of Soybean Plants as an Effective Agroecological Solution under Climate Change Conditions.

Rhizobial inoculation in combination with fungicidal seed treatment is an effective solution for improving soybean resistance to modern climate changes due to the maximum implementation of the plant's stress-protective antioxidant properties and their nitrogen-fixing potential, which will contribute to the preservation of the environment. Model ecosystems at different stages of legume-rhizobial symbiosis formation, created by treatment before sowing soybean seeds with a fungicide (fludioxonil, 25 g/L) and inoculation with an active strain of Bradyrhizobium japonicum (titer 109 cells per mL), were subjected to microbiological, biochemical, and physiological testing methods in controlled and field conditions. Seed treatment with fungicide and rhizobia showed different patterns in the dynamics of key antioxidant enzymes in soybean nodules under drought conditions. Superoxide dismutase activity increased by 32.7% under moderate stress, while catalase increased by 90.6% under long-term stress. An increase in the antioxidant enzyme activity induced the regulation of lipoperoxidation processes during drought and after the restoration of irrigation. Regeneration after stress was evident in soybean plants with a combination of fungicide seed treatment and rhizobial inoculant, where enzyme levels and lipoperoxidation processes returned to control plant levels. Applying seed treatment with fungicide and Rhizobium led to the preservation of the symbiotic apparatus functioning in drought conditions. As proof of this, molecular nitrogen fixation by nodules has a higher efficiency of 25.6% compared to soybeans without fungicide treatment. In the field, fungicidal treatment of seeds in a complex with rhizobia inoculant induced prolongation of the symbiotic apparatus functioning in the reproductive period of soybean ontogenesis. This positively affected the nitrogen-fixing activity of soybeans during the pod formation stage by more than 71.7%, as well as increasing soybean yield by 12.7% in the field. The application of Rhizobium inoculant and fungicide to seeds contributed to the development of antioxidant protection of soybean plants during droughts due to the activation of key enzymatic complexes and regulation of lipoperoxidation processes, which have a positive effect on nitrogen fixation and productivity of soybeans. This is a necessary element in soybean agrotechnologies to improve plant adaptation and resilience in the context of modern climate change.

Meridional Shifts of the Southern Hemisphere Westerlies During the Early Cenozoic

AbstractDespite the crucial role of the Southern Hemisphere (SH) westerlies in modulating modern and past climate evolution, little is known about their behavior and possible forcing mechanisms during the early Cenozoic. We probe changes in the hydroclimate of southwest Australia during 62–51 Ma, based on sedimentary proxy records from the International Ocean Discovery Program Site U1514 in the Mentelle Basin. Our results reveal a transition from a less humid climate to wetter conditions at mid–high latitudes starting from the early Eocene, which suggests poleward migration of the SH westerlies. This long‐term trend is punctuated by short‐lived events of aridification during the Mid‐Paleocene Biotic Event and wetter intervals during the Paleocene‐Eocene Thermal Maximum, indicating additional short‐term meridional shifting of the westerlies. We propose that the evolution of SH westerlies was driven by the equator‐to‐pole temperature gradient regulated by global warming and ephemeral growth of the Antarctic ice sheet.

Bioclimatic design approach in colonial office buildings architecture in Algeria

This study investigates the interaction between climate and colonial architectural heritage, focusing on the adaptive design strategies employed in office buildings constructed during the colonial period. Utilizing a bioclimatic approach and referencing Mahony's table, the research conducts a comparative analysis between the recommendations of bioclimatic design principles and the responsive design strategies adopted by French engineers during the colonial era. The objective is to determine whether these colonial-era buildings were constructed in accordance with local climatic conditions. The findings of this study shed light on architecture that effectively responds to climate, serving as an important source of inspiration for contemporary designers. This is particularly relevant at a time when the harmonious relationship between modern architectural design and climate challenges has diminished. This research contributes to a better understanding of the integration of bioclimatic principles in colonial architecture, offering valuable insights for developing sustainable and resilient design strategies in the face of current climate changes. By re-evaluating past practices, it proposes a thorough reflection on the importance of designing buildings adapted to environmental specificities, promoting a more ecological and contextual approach to contemporary architecture.

Coal-based generators’ corporate response to an emissions trading scheme in Kazakhstan

The power industry remains a central focus of modern climate mitigation policies because of its significant contribution to global GHG emissions and increased global electricity demand. This paper examines Kazakhstan's coal-based power-generation companies' responses to a national emissions trading scheme (ETS) regulation introduced in 2013 by applying corporate climate strategy and sociotechnical systems frameworks. The in-depth case study is based on 20 interviews with managers of the six largest Kazakhstan coal-based generators and ten interviews with independent industry experts. The empirical data indicate that Kazakhstan's ETS has impacted the country's generators. The companies have responded in the form of non-compliance (i.e., application for additional free allowances), compliance (i.e., purchase of allowances from the ETS), and compliance-plus activities (i.e., exploring investment into renewable energy and fuel switching to natural gas). At the same time, Kazakhstan's generators continue the business-as-usual approach by investing in modernizing their coal-generating assets. Therefore, Kazakhstan may consider complementing its ETS regulation with additional policy reforms to support its ambitious objective to achieve carbon neutrality by 2060.

Vertical Structure and Energetic Constraints for a Backscatter Parameterization of Ocean Mesoscale Eddies

AbstractMesoscale eddies modulate the stratification, mixing, tracer transport, and dissipation pathways of oceanic flows over a wide range of spatiotemporal scales. The parameterization of buoyancy and momentum fluxes associated with mesoscale eddies thus presents an evolving challenge for ocean modelers, particularly as modern climate models approach eddy‐permitting resolutions. Here we present a parameterization targeting such resolutions through the use of a subgrid mesoscale eddy kinetic energy budget (MEKE) framework. Our study presents two novel insights: (a) both the potential and kinetic energy effects of eddies may be parameterized via a kinetic energy backscatter, with no Gent‐McWilliams along‐isopycnal transport; (b) a dominant factor in ensuring a physically‐accurate backscatter is the vertical structure of the parameterized momentum fluxes. We present simulations of 1/2° and 1/4° resolution idealized models with backscatter applied to the equivalent barotropic mode. Remarkably, the global kinetic and potential energies, isopycnal structure, and vertical energy partitioning show significantly improved agreement with a 1/32° reference solution. Our work provides guidance on how to parameterize mesoscale eddy effects in the challenging eddy‐permitting regime.

DIGITALLY DRIVEN MODEL OF A CLIMATE-NEUTRAL ECONOMY IN TERMS OF GLOBAL FINANCIAL CAPACITY

The article explores the conditions and drivers for the development of a climate-neutral economy model, emphasizing the pivotal role of digital transformation. A crucial lever in deploying this model is the proactive engagement of international financial entities within the realm of global green financing. The study highlights the instrumental role of green funds as key players in shaping global financial capacity and providing multilateral support for climate change adaptation worldwide. It delves into the overarching frameworks and mechanisms of such assistance. Employing a systematic analysis alongside case studies of the Green Climate Fund's projects, the authors aim to identify the most impactful sectors for cultivating a climate-neutral economy. The research identifies four essential segments for achieving climate neutrality: digitalization for climate, strengthening the financial capacity and business sustainability, rethinking ecosystem development, and community empowerment. The investigation draws on extensive data regarding the execution of 240 climate projects across major beneficiaries of climate finance in Eastern Europe, Africa, the Asia-Pacific, and Latin America. It shows that modern climate finance demonstrates signs of geopolitical dependency and polarization in global influence. The findings argue for bolstering the regional presence of climate funds to increase the financial capacity to implement climate-neutral projects at the local level. The article underscores the scale of financial support required across each segment, as well as the leading role of pre-project preparation. The authors substantiate the overarching and twofold role of digitalization in the model of a climate-neutral economy. The digital transformation produces a whole cluster of independent and versatile IT products for green businesses, industries and governance. On the other hand, digitalization creates an informational environment and a powerful digital infrastructure for better efficacy of other crucial segments. Specifically, it provides digital decisions for financial solvency and sustainability of green businesses in terms of green lending, grants and Fintech; strengthens information awareness and involvement of vulnerable communities in green economy processes; promotes digital support for overall ecosystem adaptation.

Interactive Effects of Temperature, Aridity, and Plant Stoichiometry on Insect Herbivory: Past and Present.

AbstractThe influence of climate on deep-time plant-insect interactions is becoming increasingly well known, with temperature, CO2 increases (and associated stoichiometric changes in plants), and aridity likely playing a critical role. In our modern climate, all three factors are shifting at an unprecedented rate, with uncertain consequences for biodiversity. To investigate effects of temperature, stoichiometry (specifically that of nitrogen), and aridity on insect herbivory, we explored insect herbivory in three modern floral assemblages and in 39 fossil floras, especially focusing on eight floras around a past hyperthermal event (the Paleocene-Eocene Thermal Maximum) from Bighorn Basin (BB). We find that higher temperatures were associated with increased herbivory in the past, especially among BB sites. In these BB sites, non-N2-fixing plants experienced a lower richness but higher frequency of herbivory damage than N2-fixing plants. Herbivory frequency but not richness was greater in BB sites compared with contemporaneous, nearby, but less arid sites from Hanna Basin. Compared with deep-time environments, herbivory frequency and richness are higher in modern sites, suggesting that current accelerated warming uniquely impacts plant-insect interactions. Overall, our work addresses multiple aspects of climate change using fossil data while also contextualizing the impact of modern anthropogenic change on Earth's most diverse interactions.