Geoscience frontiers最新文献

{"title":"Do continental lithospheric discontinuities exert control on tectonic plate motion directions?","authors":"Yvette D. Kuiper","doi":"10.1016/j.gsf.2025.102154","DOIUrl":"10.1016/j.gsf.2025.102154","url":null,"abstract":"<div><div>Plate motion directions, and the orientations of rift zones and oceanic spreading ridges, and of transform faults and fracture zones that are perpendicular to these ridges, are generally controlled by tectonic forces such as slab pull, mantle convection, and mantle plumes. Here, it is hypothesized that within the confines of these general orientations, the exact orientations of these structures, and therefore plate motion directions, are partially controlled by suitably oriented sets of steep continental lithospheric discontinuities (CLDs), which work in concert with these larger tectonic forces.</div><div>Previously, the observation has been made that oceanic fracture zones are contiguous with CLDs, such as suture zones and other lithospheric fault zones. Based on high-resolution bathymetry, geological and geophysical data, it is demonstrated here that continents have multiple sets of lineaments parallel to such CLDs, or contiguous with CLDs where they occur farther inland and do not reach the ocean. Published analog experiments suggest that the orientations of transform faults and fracture zones are controlled by these CLDs if the angle between the spreading direction and the CLDs is no more than ∼45°. Spreading ridge segments evolve in an orientation perpendicular to these transform faults and fracture zones, so that the spreading direction becomes parallel to the transform faults and fracture zones. The implication is that the exact plate motion directions are controlled by CLDs, if a set of CLDs is orientated at low angle with the spreading direction. When plate motion directions need to change due to tectonic forces, the new hypothesis predicts that the exact directions may be controlled by a different set of suitably orientated CLDs. During later stages of oceanic spreading, the larger tectonic forces such as slab pull, mantle convection, and mantle plumes become increasingly dominant and plate motion directions may no longer be controlled by the CLDs.</div><div>While the hypothesis needs further testing, it has potentially far-reaching implications. For example, Euler pole reconstructions are commonly based on small circle patterns formed by fracture zones and transform faults in the oceanic lithosphere. Oceanic crust older than ∼200 Ma is typically destroyed by subduction, and pre-Mesozoic Euler poles can therefore not be reconstructed based on that method. If the hypothesis presented above is correct, the orientations of CLDs and associated lineament sets may be used as proxies for orientations of past transform faults and fracture zones, at least during early oceanic spreading. The locations of past Euler poles may thus be better estimated based on these CLDs and lineaments, and pre-Mesozoic plate tectonic reconstructions may be much improved in deep geologic time.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102154"},"PeriodicalIF":8.9,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The H2 generation mechanisms of natural gas in the Sulige gas field, Ordos Basin, China","authors":"Panpan Zhang ,&nbsp;Zhijun Jin ,&nbsp;Xiaomei Wang ,&nbsp;Kun He ,&nbsp;Zhenguang Shang ,&nbsp;Jinhao Guo ,&nbsp;Xuan Tang ,&nbsp;Runchao Liu ,&nbsp;Runze Cui ,&nbsp;Qitu Hu","doi":"10.1016/j.gsf.2025.102153","DOIUrl":"10.1016/j.gsf.2025.102153","url":null,"abstract":"<div><div>Due to its renewability, zero-emissions, and low production cost, natural hydrogen (H₂) holds considerable potential as a carbon-free energy resource and represents a key focus for enabling energy transition and achieving carbon neutrality. The generation mechanisms and accumulation patterns of H₂ need further investigation, particularly with regard to the sources of H₂ in sedimentary basin. This knowledge gap hinders the exploration and development of H₂ resources. The study reports the concentrations and isotopic compositions of H₂ and hydrocarbons of natural gas in the Sulige gas field. The results suggest that the H₂ content in natural gas can reach up to 22.98 %, with H₂ isotope values (<em>δ</em>²H-H₂) ranging from −809‰ to −700‰. Based on comprehensive analysis of carbon and hydrogen isotopes of hydrocarbons, geological conditions, and hydrogen isotope fractionation mechanisms of H₂, this study reveals that the H₂ in the Upper Paleozoic natural gas is likely derived primarily from organic matter pyrolysis in coal-bearing source rocks, while the H₂ in the Lower Paleozoic natural gas is probably generated mainly through water radiolytic in basement granite and metamorphic rocks. The diffusion fractionation model demonstrates that significant isotopic fractionation occurs during the migration of deep-sourced H₂ to sedimentary reservoirs, resulting in notably depleted <em>δ</em>²H-H₂ values in the Lower Paleozoic natural gas. The H₂ generation through organic matter pyrolysis primarily occurs during the late gas generation stage, with peak production concentrated in the Late Triassic to Early Cretaceous periods. Given the genetic correlation between H₂ and hydrocarbons, the H₂ may accumulate with natural gas in reservoirs. In contrast, H₂ generation through water radiolysis in the study area exhibits multi-source characteristics and prolonged duration, demonstrating significant potential for independent accumulation. This study not only elucidates the generation mechanisms of H₂ but also provides a significant geological case study for understanding the distribution characteristics and resource potential of H₂ in sedimentary basins.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102153"},"PeriodicalIF":8.9,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145266545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Causal mechanisms and governance priorities of the SDG-based resource-economy-environment nexus in the human-nature system","authors":"Yizhong Huan ,&nbsp;Pengpeng Mo ,&nbsp;Yiming Su ,&nbsp;Xiaoyun Li ,&nbsp;Yazhu Wang ,&nbsp;Yali Tong ,&nbsp;Tao Liang ,&nbsp;Lingqing Wang ,&nbsp;Jian Hu ,&nbsp;Guangjin Zhou","doi":"10.1016/j.gsf.2025.102152","DOIUrl":"10.1016/j.gsf.2025.102152","url":null,"abstract":"<div><div>The eight Sustainable Development Goals (SDGs) related to resources (2, 6, 7), economy (8, 9), and environment (12, 13, 15), collectively known as REE, form the core of the human-nature system. Understanding their complex interactions is crucial for identifying transformative and effective governance actions. However, the causal mechanisms underlying the REE-related SDGs remain elusive. We used expert elicitation to assess weighted, directed interactions among 69 targets of these SDGs and applied network analysis and machine learning to identify their higher-order impacts, capacity to maintain network robustness, community structures, similarities, and systemic and structural roles. Additionally, we used causal emergence analysis and link prediction to examine potential characteristics of the causal network at macro and micro scales, respectively. The results indicate that prioritizing target 9.4 (sustainable &amp; clean industries) can accelerate overall SDG progress while enhancing synergies and maintaining systemic resilience. In the macro-network, where causal emergence occurs, macronode E dominated by ecological targets plays the strongest facilitating role. In the micro-network, four predicted links with the highest weights indicate that strengthening scientific research and technological innovation is expected to be a potential focal point for positive impact. However, its possible negative effects warrant careful consideration. Additionally, significant trade-offs may arise between energy development and species conservation in the REE nexus that should be avoided. This study offers new insights into the causal mechanisms and priorities of the SDGs in REE, promoting global human-nature system coupling and accelerating the achievement of the 2030 Agenda.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102152"},"PeriodicalIF":8.9,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characteristics and drivers of carbonaceous aerosol pollution in a coastal city of northern China","authors":"Li Fang ,&nbsp;He Meng ,&nbsp;Yanjun Yang ,&nbsp;Ruiyu Li ,&nbsp;Yang Yue ,&nbsp;Caiqing Yan","doi":"10.1016/j.gsf.2025.102151","DOIUrl":"10.1016/j.gsf.2025.102151","url":null,"abstract":"<div><div>Carbonaceous aerosols significantly impact air quality, human health and climate change, yet their concentration levels and influencing factors exhibit significant regional variability. This study examined the concentration levels and temporal variations of carbonaceous aerosols in Qingdao, a typical coastal city in China, using a year-long, high-time-resolution dataset of organic carbon (OC) and elemental carbon (EC) measurements. The impacts of meteorological conditions, primary emissions, atmospheric oxidants, and sea-land breezes were systematically analyzed by employing an interpretable machine learning model. The results revealed that atmospheric OC and EC concentration levels were relatively low in Qingdao, but secondary organic carbon (SOC) accounted for 43 % of OC, emphasizing the substantial influence of secondary sources. SOC concentrations peaked in the evening, whereas primary organic carbon (POC) and EC concentrations peaked during morning rush hours. The elevated carbonaceous aerosol concentration observed in winter likely resulted from enhanced primary emissions coupled with unfavorable dispersion conditions, whereas intensive photochemical activities during summer facilitated SOC formation. Higher SOC levels were observed during sea-land breeze days than non-sea-land breeze days. The machine learning model indicated that atmospheric oxidants played an important role in SOC formation during sea-land breeze days, while combustion related emissions may be the key factor on non-sea-land breeze days. Furthermore, SOC levels were higher under land breezes compared to sea breezes, likely due to enhanced primary emissions from terrestrial sources coupled with confined pollutant dispersion. These findings revealed complex emission-meteorology-chemistry interactions affecting coastal air quality, informing targeted air pollution mitigation strategies.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102151"},"PeriodicalIF":8.9,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lacustrine organic carbon burial dynamics regulate Aptian-Albian greenhouse-cooling climate oscillations","authors":"Dongjun Song ,&nbsp;Yifeng Hong ,&nbsp;Jingyu Zhang ,&nbsp;Xinnan Fang ,&nbsp;Shuang Dai","doi":"10.1016/j.gsf.2025.102150","DOIUrl":"10.1016/j.gsf.2025.102150","url":null,"abstract":"<div><div>Investigating terrestrial response to typical greenhouse periods is essential to understand past and present climate-carbon-cycle interactions. The Cretaceous climate transition is thought to be related to carbon cycles, yet the role of lacustrine systems in modulating global carbon-climate feedback remains poorly constrained. Here, we present a high-resolution biogeochemical record from an Aptian-Albian paleolake in northwestern China, integrating biomarkers, nitrogen isotopes, and elemental proxies. We reveal that warm-humid climates during the early Aptian amplified lacustrine organic carbon burial via intensified denitrification, methane cycling, and nutrient fluxes, potentially reinforcing oceanic anoxic event 1a (OAE1a) hyperthermal conditions through N₂O/CH₄ emissions. Subsequent nitrogen limitation triggered cyanobacterial dominance, sustaining carbon sequestration under moderate weathering and contributing to cooling the late Aptian climate. A transient early Albian warming phase shifted the nitrogen pool towards NH₄⁺ and favored the bloom of eukaryotic algae, aligning with global OAE1b carbon burial and serving as one of the contributors to the late early Albian cooling climate. These dynamics demonstrate that paleolakes acted as both carbon sinks and greenhouse gas sources, exerting a critical but previously overlooked feedback on Cretaceous climate oscillations. Our findings highlight the dual role of lacustrine systems in past carbon cycle perturbations, offering insights for refining the relationships between the carbon cycle and climate changes in the Cretaceous.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102150"},"PeriodicalIF":8.9,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shale oil occurrence and mobility mechanisms in brittle mineral-enriched reservoirs: Insights from the Paleogene Kongdian Formation, Bohai Bay Basin","authors":"Bixiao Xin ,&nbsp;Fang Hao ,&nbsp;Jinqiang Tian ,&nbsp;Pengfei Guo ,&nbsp;Qilu Xu ,&nbsp;Wenzhong Han","doi":"10.1016/j.gsf.2025.102149","DOIUrl":"10.1016/j.gsf.2025.102149","url":null,"abstract":"<div><div>Understanding shale oil occurrence and mobility is essential for evaluating resource potential and optimizing exploration in lacustrine shale systems. This study investigates the Paleogene Kongdian Formation in the Bohai Bay Basin, integrating organic geochemistry, mineralogical analysis, scanning electron microscopy, solvent extraction, multi-step Rock-Eval pyrolysis, and 2-D NMR to characterize shale oil occurrence states and mobility mechanisms in brittle mineral-enriched reservoirs. Results indicate that shale oil mainly occurs in free and adsorbed states within interparticle pores, dissolution pores, microfractures, and organic pores, with most retained oil hosted in nanopores smaller than 200 nm. Quantitative analyses show that siliceous and calcareous shales possess higher movable oil ratios than clay-rich counterparts, primarily due to their rigid mineral frameworks that resist compaction and preserve interparticle and intragranular pores. These brittle-rich lithofacies exhibit broader pore size distributions, enhanced connectivity, and reduced adsorption affinity, facilitating more efficient oil accumulation and displacement. In contrast, micropore-dominated, clay-rich shales exhibit strong adsorption and limited pore continuity, which hinder hydrocarbon mobility. Appropriate TOC levels (2.0–4.5 wt.%) favor shale oil mobility, while excessive organic content increases adsorption, reducing the proportion of free oil.</div><div>Among various geological factors, brittle mineral content and thermal maturity play the dominant roles in controlling shale oil mobility, as they fundamentally shape pore structure and fluid properties. In combination with organic matter abundance and sedimentary features, these factors jointly govern pore network evolution and hydrocarbon occurrence states, thereby determining shale oil enrichment and extractability. These findings enhance the understanding of shale oil enrichment processes and provide a scientific basis for identifying sweet spots and optimizing development strategies in lacustrine shale reservoirs.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102149"},"PeriodicalIF":8.9,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Present-day temperature and pressure fields in key areas of Northeast China: Implications for unconventional resource evaluation","authors":"Yue Huang ,&nbsp;Jian Chang ,&nbsp;Nansheng Qiu ,&nbsp;Nobuo Maeda","doi":"10.1016/j.gsf.2025.102148","DOIUrl":"10.1016/j.gsf.2025.102148","url":null,"abstract":"<div><div>The temperature-pressure fields within hydrocarbon-bearing basins are key geological factors controlling hydrocarbon generation, migration, and accumulation. In this study, we focus on the Qingshankou Formation in the northern part of the central depression of the Songliao Basin, China. A multi-parameter weighted evaluation model was created using present temperature-pressure field characteristics, with formation temperature-pressure as core variables, to evaluate shale oil resource potential. In addition, we explored the control mechanisms of temperature-pressure evolution during geological history on shale oil accumulation and further assessed the applicability of the proposed method. Our results show that the geothermal gradient of the Qingshankou Formation decreases from Member 1 to Member 3 (3.84 °C/100 m, 2.93 °C/100 m, and 2.49 °C/100 m, respectively). High-temperature zones are widely distributed in the Gulong sag, with the average temperature of the Gulong shale exceeding 95 °C and reaching an average of approximately 115 °C. Overpressure in the Qingshankou Formation exhibits a west-high to east-low trend. The overpressure zones of the Gulong shale are mainly concentrated in the Qijia-Gulong and Sanzhao sag, with average pressure coefficients of 1.52 and 1.36, respectively. The Opc model identified Class I and II favorable zones, mainly located in the central and southern parts of the Gulong Sag, as well as the central and southwestern Sanzhao Sag, with estimated shale oil resources of <span><math><mrow><mn>7.1</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mn>8</mn></mrow></msup></mrow></math></span> tons and <span><math><mrow><mn>17.2</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mn>8</mn></mrow></msup></mrow></math></span> tons, respectively. Evolutionary profiles from representative wells indicate that elevated temperatures enhance organic matter maturation and light oil generation, improving shale oil mobility, while overpressure suppresses hydrocarbon dissipation and provides a sufficient driving force for oil production. This study demonstrates that present-day temperature-pressure fields effectively reflect the evolution trends of paleo-thermal and pressure regimes. The proposed evaluation method shows strong applicability and scalability, offering a new technical framework and theoretical foundation for the exploration of unconventional hydrocarbon resources.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102148"},"PeriodicalIF":8.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Extreme drought affects lake water quality, quantity, morphometry: Evidence from China’s largest fresh water lake under the 2022 global drought","authors":"Xihua Wang ,&nbsp;Zejun Liu ,&nbsp;Y. Jun Xu ,&nbsp;Boyang Mao ,&nbsp;Shunqing Jia","doi":"10.1016/j.gsf.2025.102146","DOIUrl":"10.1016/j.gsf.2025.102146","url":null,"abstract":"<div><div>Extreme drought poses a significant threat to humanity. In the summer of 2022, the world experienced the worst drought in recent years, with a precipitation deficit and an abnormal high temperature, profoundly affecting human life and the aquatic environment. However, the drought influence on large freshwater lakes remains unclear. In this study, we selected China’s largest freshwater lake (Poyang Lake) as the research object and investigated the lake water area, quantity, lake morphology and water quality in 2018 (normal season) and 2022 (extreme drought period). Results showed that standardized precipitation index (SPI), standardized runoff index (SRI) and standardized precipitation-evapotranspiration index (SPEI) reached moderate to severe drought in the summer of 2022. From 2018 to 2022, lake water area decreased (1789.62 km²), water quantity reduced (15.40 × 10⁹ m³) and lake shoreline decreased (2923.70 km). The shoreline development index, size ratio and energy factor decreased by 4.87, 198.53 m and 963.60, specifically. The dynamic ratio, relative depth and Schindler’s ratio increased by 1457.10, 0.04 and 13.48 m⁻¹, respectively. The water chemical indicators varied significantly in two years and the water hydrochemical types changed from SO₄·Cl − Ca·Mg type and HCO₃ − Ca·Mg type to SO₄·Cl − Ca·Mg type from 2018 to 2022. Water-rock interaction, alternating cation adsorption and anthropogenic influence on water quality represented different patterns in two periods. Our findings demonstrate significant differences in water resources and quality between common and extreme drought conditions in China’s largest fresh water lake, which can inform research on climate change effects on international large freshwater lakes.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102146"},"PeriodicalIF":8.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermokarst disturbance responses to climate change across the circumpolar permafrost regions from 1990 to 2023","authors":"Ya Liu ,&nbsp;Haijun Qiu ,&nbsp;Ninglian Wang ,&nbsp;Dongdong Yang ,&nbsp;Kailiang Zhao ,&nbsp;Guoqing Yang ,&nbsp;Wenchao Huangfu ,&nbsp;Wanqi Luo","doi":"10.1016/j.gsf.2025.102147","DOIUrl":"10.1016/j.gsf.2025.102147","url":null,"abstract":"<div><div>Warming climate drives permafrost degradation and forms serious thermokarst disturbances, with significant impacts on geomorphology, hydrology, and ecological processes. However, the long-term monitoring of thermokarst disturbances and their next development remains a challenge across the circumpolar permafrost regions. Here, we calculate six spectral indices from Landsat images to represent greenness, wetness, and brightness, quantifying the spatiotemporal characteristics of thermokarst landscape dynamics and further revealing their development with a warming climate. Additionally, DNMI, NDWI, and NDVI are selected to verify the occurrence and severity of retrogressive thaw slumps, thermokarst lake expansion, and drainage by the LandTrendr algorithm on the Google Earth Engine platform. Three major types of thermokarst events show a consistent disturbance year, correlating with the summer temperature increase point around 2000. Their correlation analysis also reveals that the subsequent landscape development of thermokarst disturbances is related to the warming context, showing vegetation greening and soil wetting trends. These findings highlight the dynamic characteristics of thermokarst disturbances from 1990 to 2023, providing a comprehensive understanding of thermokarst development under a changing climate.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102147"},"PeriodicalIF":8.9,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How energy intensity and global energy dynamics shape renewable energy transition in APEC economies","authors":"Guixian Tian ,&nbsp;Xiang Hua ,&nbsp;Danyu Li ,&nbsp;Junyi Tian","doi":"10.1016/j.gsf.2025.102134","DOIUrl":"10.1016/j.gsf.2025.102134","url":null,"abstract":"<div><div>This study examines the critical factors influencing the adoption of modern renewable energy in selected APEC countries from 1997 to 2023, with a focus on their implications for sustainable development and environmental sustainability. Using dynamic panel data estimation techniques (Arellano–Bond and system dynamic panel-data estimation), we analyze the interplay between energy intensity, world energy balances, economic globalization, and the shadow economy in shaping the share of modern renewables in total final energy consumption. Our results indicate that higher energy intensity reduces renewable energy adoption, reflecting systemic challenges in integrating clean energy into high-demand systems. Conversely, world energy balances and economic globalization enhance renewable energy penetration, driven by decarbonization policies, technological advancements, and cross-border collaboration. Surprisingly, the shadow economy also plays a positive role, suggesting that informal sector activities may facilitate small-scale renewable energy investments. From a sustainability perspective, these findings underscore the need for APEC economies to prioritize energy efficiency, strengthen international cooperation, and implement inclusive policies that support renewable energy transitions. By addressing structural barriers and leveraging globalization, APEC nations can accelerate progress toward Sustainable Development Goals (SDGs), particularly SDG 7 (Affordable and Clean Energy) and SDG 13 (Climate Action). Policymakers are encouraged to design targeted interventions, including green financing mechanisms, technology transfer programs, and regulatory incentives, to align economic growth with long-term environmental sustainability.</div></div>","PeriodicalId":12711,"journal":{"name":"Geoscience frontiers","volume":"16 6","pages":"Article 102134"},"PeriodicalIF":8.9,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144996840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}