Xiao-Qi Zheng , Xiang-Bo Xu , Chang Li , Chao Fu , Zhao-Yuan Fan
{"title":"Off-farm income promotes energy transition in the Pan-Third Pole cross-national region","authors":"Xiao-Qi Zheng , Xiang-Bo Xu , Chang Li , Chao Fu , Zhao-Yuan Fan","doi":"10.1016/j.accre.2023.09.003","DOIUrl":"10.1016/j.accre.2023.09.003","url":null,"abstract":"<div><p>The Pan-Third Pole region comprises multiple nations affected by climate vulnerability and energy inequality, wherein promoting energy transitions in rural households would provide a path to combat climate change. Identifying the factors that drive rural household energy consumption and the transition is important. This study performed a micro-survey of 1060 rural households in five countries in the Pan-Third Pole region and empirically analyzed the relationships between off-farm income, energy consumption, and energy transitions. The off-farm income of rural households was found to have a significantly positive effect (<em>p</em> < 0.01) on energy expenditure, indicating that energy expenditure increased with increasing off-farm income. Off-farm income has a significantly positive effect (<em>p</em> < 0.01) on the proportion of commercial energy but a significantly negative effect on the proportion of noncommercial energy. These results indicate that increasing off-farm income can adjust the energy consumption structure of rural households. Furthermore, a robustness check by substituting independent variables, instrumental variable method (IV), and propensity score matching method (PSM) provided strong evidence to prove the robustness of the results. The heterogeneity analysis showed that the effects of off-farm income on energy expenditure and transitions differed among countries, off-farm income had no significant impact on energy expenditure in Cambodia and Myanmar, but it worked for China, Nepal, and Thailand. Finally, policy implications are proposed to promote energy transition in the Pan-Third pole region: providing more full-time or part-time off-farm employment opportunities, employment assistance or skill training by local governments; increasing the pace of infrastructure construction to solve energy inaccessibility; multiple measures to promote the education and environmental knowledge.</p></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"14 5","pages":"Pages 798-809"},"PeriodicalIF":7.4,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674927823001132/pdfft?md5=e660d655e85dc6e114052b1ab700901d&pid=1-s2.0-S1674927823001132-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135324740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jin-Ning Che , Bo Liu , Shang-Feng Li , Cheng You , Kara Hartig , Lei Chen
{"title":"Understanding the physical processes in the evolution of a cold air outbreak over China in late November 2022 from a Lagrangian perspective","authors":"Jin-Ning Che , Bo Liu , Shang-Feng Li , Cheng You , Kara Hartig , Lei Chen","doi":"10.1016/j.accre.2023.08.009","DOIUrl":"10.1016/j.accre.2023.08.009","url":null,"abstract":"<div><p>From 26 November to 1 December 2022, intense cold air masses swept across China from northwest to south, resulting in a nationwide cold air outbreak (CAO) case characterised by drastic and sudden temperature drops with rain, snow and strong winds. The physical processes that dominate the intensification of the cold air masses during this CAO event remain unclear. In this study, the evolution of the CAO case, which is indicated by the dry static energy (DSE), is investigated using a novel approach in the framework of Lagrangian backtracking. The dominant processes can be identified by decomposing the DSE change into four diabatic heating terms due to shortwave radiation, longwave radiation, latent heat and turbulent processes. Overall, in this case, most of the cold air parcels originated from the east of Novaya Zemlya and crossed Central Siberia before reaching China. Thus, these air parcels mainly manifested on the northwest‒southeast path. The duration of the cold air intensification differed between subregions. The cold air parcels experienced long cooling periods (approximately 9 d) before reaching northern China (i.e. Northwest, North and Northeast China), whilst the southern parts (i.e. Central, East and South China) underwent relatively short cooling periods (6–8 d). Accordingly, the cold air affecting northern China is more intense than that affecting the southern parts, especially for East and South China. For all six subregions, longwave radiative cooling is identified as the dominant contributor to the cold air intensification, and the latent heat processes as the secondary contributor. The weakening of cold air parcels as they approach and pass over these regions is driven by turbulent processes and shortwave heating. Central Siberia and Lake Baikal are identified as key areas for the intensification of cold air passing over both regions. In addition, air parcels affecting Northwest China are intensely cooled as they pass over the Junggar Basin, while the North China Plain is a key area for cooling air parcels reaching Central, East and South China. From a Lagrangian perspective, these findings provide insights into the physical processes driving the behaviour of cold air parcels, which would help understand the mechanisms involved in the past changes and future projections in CAOs.</p></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"14 5","pages":"Pages 681-690"},"PeriodicalIF":7.4,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674927823000989/pdfft?md5=ef0766462452218e6cee1d4eaeacc5d3&pid=1-s2.0-S1674927823000989-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43651197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xue-Yang Chen , Shuang-Lin Li , Chao Zhang , Dong-Yan Liu
{"title":"Snow algal blooms in Antarctic King George Island in 2017–2022 and their future trend based on CMIP6 projection","authors":"Xue-Yang Chen , Shuang-Lin Li , Chao Zhang , Dong-Yan Liu","doi":"10.1016/j.accre.2023.09.013","DOIUrl":"10.1016/j.accre.2023.09.013","url":null,"abstract":"<div><p>Snow algal blooms have a remarkable climatic or environmental effect through influencing the snow–albedo feedback, accelerating the melting of surface snow, and amplifying global warming. Snow algal blooms occurred frequently on King George Island, Antarctic, during the recent six austral summers (December to next February) through 2017–2022. Based on an assessment of satellite images, this study found that the range and amount of snow algal blooms in the summers of 2018, 2020, 2021 and 2022 are relatively larger than in the summers of 2017 and 2019. Whether meteorological conditions have shaped the year-to-year variation of algal bloom intensities is analyzed through observational composite. The results suggest that during the strong bloom summers there exist prevailing northerly or northwesterly wind anomalies which advect warm and humid airmass from the southern ocean into the island, increasing surface air temperature and humidity; the warmer and more humid surface favors melting of snow and an increase of low cloud cover, subsequently enhancing the atmospheric downward long-wave radiation and amplifying surface warmth; the increased low cloud cover reflects more ultraviolet rays back to space and weakens the short-wave radiation reaching the surface. All these factors together favor to a stronger bloom. In comparison, during 2017 and 2019 there exist weak southerly wind anomalies which induce the northward advection of cold and dry air from the Antarctic Continent and favor the cooler surface. Consequently, it is unfavorable for the snow algal bloom. Based on these results, a snow algal bloom potential index (API) integrating the meteorological conditions is constructed, and its future trend is projected based on the EC-Earth3 run attending the CMIP6 under SSP245 and SSP585. A significant increasing trend is projected especially under SSP585. Thus snow algal bloom on King George Island will become more frequent and stronger in future. This implies a potential accelerate melting of ice shelf over Antarctic Peninsula.</p></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"14 5","pages":"Pages 732-745"},"PeriodicalIF":7.4,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674927823001235/pdfft?md5=9a878d3212f00f03a5d32d7d1e8a3cc3&pid=1-s2.0-S1674927823001235-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134933873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jie-Wei Chen, Huizhe Cui, Nan Chen, Guo-Qiang Qian
{"title":"Uncertainty of temperature rise under national determined contributions and carbon neutral policies","authors":"Jie-Wei Chen, Huizhe Cui, Nan Chen, Guo-Qiang Qian","doi":"10.1016/j.accre.2023.07.006","DOIUrl":"https://doi.org/10.1016/j.accre.2023.07.006","url":null,"abstract":"","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":" ","pages":""},"PeriodicalIF":7.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44822007","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":"Amplification of warming on the Tibetan Plateau","authors":"Cen Zhang , Da-He Qin , Pan-Mao Zhai","doi":"10.1016/j.accre.2023.07.004","DOIUrl":"10.1016/j.accre.2023.07.004","url":null,"abstract":"<div><p>The accelerated warming over the Tibetan Plateau relative to global means has attracted considerable attention from the scientific community. Nevertheless, the timescale, seasonality and dominant causes of the Tibetan warming amplification have not been discussed. The seasonality of the Tibetan amplification effect at different timescales was revealed in this study. Based on the optimal fingerprinting attribution method, an attribution study of the Tibetan warming amplification was also conducted after selecting the outperforming model simulations in the Coupled Model Intercomparison Project (CMIP6). Results showed that Tibetan warming amplification manifested in the mid-1970s. The annual amplification during 1961–2018 was 0.13 °C per decade. The warming amplification in spring started later than all the other seasons, and the strongest warming amplification occurred in winter. The change in Tibetan warming amplification also displayed distinct decadal differences at time scales shorter than 30 years. The updated models perform better in simulating the surface air temperature change on the global land scale whilst underestimating the warming over the Tibetan Plateau region, which causes a weak amplification in the model simulation. Overall, the largest deviation comes from winter. The attribution result reveals that the stronger warming response to human influence on the Tibetan Plateau than the global land is the direct cause of the Tibetan warming amplification. This finding implies the important role of local climate feedback over the Tibetan Plateau.</p></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"14 4","pages":"Pages 493-501"},"PeriodicalIF":7.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47660857","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}
Jie-Wei Chen , Hui-Juan Cui , Nan Chen , Guo-Qiang Qian
{"title":"Uncertainty of temperature rise under nationally determined contributions and carbon neutral policies","authors":"Jie-Wei Chen , Hui-Juan Cui , Nan Chen , Guo-Qiang Qian","doi":"10.1016/j.accre.2023.07.006","DOIUrl":"https://doi.org/10.1016/j.accre.2023.07.006","url":null,"abstract":"<div><p>Nationally determined contributions raised by Paris Agreement aim to control the temperature rise below 2 °C or even 1.5 °C at the end of the 21st century, compared to pre-industrial levels. However, the climate response of the Nationally Determined Contributions (NDCs) remains uncertain due to unstable policies and their credibility. In this study, we calculated the uncertainty of global temperature rise caused by uncertain NDCs and carbon-neutral policies and discussed the difficulty of policy implementation. The results show that there will be 8 GtC uncertainty in emission at the end of the 21st century, responsible for the temperature rise of 0.37 °C (1.73–2.10 °C). A delayed policy in emission reduction by major emitters would result in a temperature rise of over 2 °C, while under non-delay policy, the 2 °C target will be possibly achieved. Besides, low-emission countries would introduce a 30 GtC cumulative emission uncertainty at the end of the 21st century if there are no restrictions, leading to a 0.3 °C global warming uncertainty. Developed countries need more substantial reductions in carbon intensity to achieve their climate policies while developing countries are under less pressure. The reduction of carbon intensity requires the strengthening of technical and economic methods. This study provides a reference for the realization of emission policies and temperature rise targets.</p></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"14 4","pages":"Pages 580-586"},"PeriodicalIF":7.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50182308","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":"Exploring atmospheric environmental drivers of asthma among children in Shanghai, China: Evidence-informed policies are required","authors":"Shilu TONG, Ya-Bin HU, Fan JIANG, Shi-Jian LIU, Jian-Guo TAN, Guang-Jun YU, Chong-Huai YAN, Sheng-Hui LI, Yong YIN","doi":"10.1016/j.accre.2023.07.007","DOIUrl":"10.1016/j.accre.2023.07.007","url":null,"abstract":"<div><p>It is important to identify atmospheric environmental drivers of childhood asthma because asthma is the most common chronic disease in children globally. We provided an overview of the impacts of exposure to atmospheric environmental factors (e.g., meteorological factors and air pollutants) on childhood asthma, based on a series of studies with the cutting-edge environmental epidemiological methodology in Shanghai, China. Overall, we found that the prevalence of asthma among the children aged 3–7 years had increased by approximately 7 fold, from 2.1% in 1990 to 14.6% in 2019. Most meteorological factors (i.e. daily mean temperature, temperature difference, air pressure, air pressure difference, precipitation, relative humidity, sunshine and wind speed) and air pollutants (PM<sub>10</sub>, PM<sub>2.5</sub>, NO<sub>2</sub>, SO<sub>2</sub> and O<sub>3</sub>) were significantly associated with childhood asthma (<em>p</em> < 0.05), but meteorological factors appeared to play more important roles than air pollutants in the occurrence of asthma exacerbations. We also found that temperature variability was significantly associated with the elevated relative risk of daily outpatient visits for childhood asthma (<em>p</em> < 0.05). Furthermore, we conducted a systematic review on climate change adaptation measures and childhood asthma and found that there were a number of adaptation measures proposed for childhood asthma in response to climate change, including vulnerability assessment, improving ventilation and heating, enhancing community education, developing forecast models, and early warning systems. However, the effectiveness of most adaptation measures, except for improving ventilation and heating in winter, have not been explored and quantified. Since asthma is sensitive to the variation of atmospheric environmental conditions, it is critical to develop and implement appropriate climate change mitigation and adaptation strategies as global heating becomes apparent.</p></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"14 4","pages":"Pages 587-591"},"PeriodicalIF":7.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43628096","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}
Li-Yun Dai , Li-Juan Ma , Su-Ping Nie , Si-Yu Wei , Tao Che
{"title":"Historical and real-time estimation of snow depth in Eurasia based on multiple passive microwave data","authors":"Li-Yun Dai , Li-Juan Ma , Su-Ping Nie , Si-Yu Wei , Tao Che","doi":"10.1016/j.accre.2023.07.003","DOIUrl":"10.1016/j.accre.2023.07.003","url":null,"abstract":"<div><p>Current snow depth datasets demonstrate large discrepancies in the spatial pattern in Eurasia, and the lagging updates of datasets do not meet the operational requirements of the meteorological service department. This study developed a dynamic retrieval method for daily snow depth over Eurasia based on cross-sensor calibrated microwave brightness temperatures to enhance retrieval accuracy and meet the requirements of operational work. These brightness temperatures were detected by microwave radiometer imager carried on the FengYun 3 (FY-3) satellite and the special sensor microwave imager/sounder carried on the USA Defense Meteorological Satellite Program series satellites, which use the fewest sensors to provide the longest data and consequently introduce minimal errors during inter-sensor calibration. Firstly, inter-sensor calibration was conducted amongst brightness temperatures collected by the three sensors. A spatiotemporal dynamic relationship between snow depth and microwave brightness temperature gradient was then established, overcoming the large uncertainties induced by varying snow characteristics. This relationship can be utilised in FY-3 satellite data for operational service to obtain real-time snow depth. The generated daily snow depth dataset from 1988 to 2021 presents similar spatial patterns of snow depth to those observed <em>in situ</em>. Against <em>in situ</em> snow depth, the overall bias and root mean square error are −2.04 and 6.49 cm, respectively, facilitating considerable improvements in accuracy compared with the Advanced Microwave Scanning Radiometer 2 snow depth product, which adopts the static algorithm. Further analysis shows an overall decreasing trend from 1988 to 2021 for annual and monthly mean snow depths, demonstrating a noticeable reduction since around 2000. The reduction in monthly mean snow depth started earlier in shallow snow months than in deep snow months.</p></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"14 4","pages":"Pages 537-545"},"PeriodicalIF":7.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46288705","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}
Wen-Yu Yin , Xin Gao , Run Guo , Peng Fan , Guang-Qing Zhou
{"title":"Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP","authors":"Wen-Yu Yin , Xin Gao , Run Guo , Peng Fan , Guang-Qing Zhou","doi":"10.1016/j.accre.2023.08.005","DOIUrl":"10.1016/j.accre.2023.08.005","url":null,"abstract":"<div><p>The diversity of surface-flux perturbations, especially for heat-flux perturbations, notably leads to uncertainties surrounding the responses of ocean climate under global warming scenarios projected by climate/Earth system models. However, when imposing heat-flux perturbations on the models, strong feedback persists between the atmosphere and the ocean, resulting in nearly doubled heat-flux perturbation over the North Atlantic (NA). Herein, quantitative evaluation of the influences of magnitude change of heat-flux perturbations over the NA on the changes in the Atlantic Meridional Overturning Circulation (AMOC), ocean heat uptake (OHU) and dynamic sea level (DSL) has been conducted by analysis of eight coupled model responses to the heat-flux perturbation experiments in the Flux-Anomaly-Forced Model Inter-comparison Project. It has been demonstrated that the magnitude of the AMOC change is extremely sensitive to the magnitude change of imposed NA heat-flux perturbation, and the weakening amplitude of the AMOC is nearly halved as the imposed heat-flux perturbation <em>F</em> is halved over the NA. The most remarkable responses of both DSL and OHU to the magnitude changes of NA heat-flux perturbation have been primarily found in the Atlantic and Arctic basins, especially for the NA region. Both the added ocean heat uptake (OHUa) and redistributed ocean heat uptake (OHUr) play key roles in OHU changes among the various NA heat-flux perturbation experiments. The magnitude change of NA-mean OHUa is almost linearly related to the imposed NA heat-flux perturbation, while the magnitude change of NA-mean OHUr, which is primarily caused by AMOC change and redistributed heat flux, is not proportional to the imposed NA heat-flux perturbation. There is a nearly linear relationship between the magnitude of AMOC change and the OHUr in tropical regions, including the regions in the low-latitude South Atlantic, the tropical Pacific Ocean and the Indian Ocean.</p></div>","PeriodicalId":48628,"journal":{"name":"Advances in Climate Change Research","volume":"14 4","pages":"Pages 546-559"},"PeriodicalIF":7.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47575829","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}