Article
Engineering, Environmental
Christoffer Wadstrom, Karolina Sodergren, Jenny Palm
Summary: Circular water management, particularly through industrial urban symbiosis (IUS), is recognized as a solution to address water scarcity in urban areas. This study explores the role of different values in driving organizations to participate in circular wastewater collaboration and presents an interdisciplinary framework for assessing actor values. By considering economic value perspectives, careful planning and stakeholder interaction can enhance the legitimacy and policy development of circular wastewater solutions.
Article
Geosciences, Multidisciplinary
Lei Huang, Sun-Seon Lee, Axel Timmermann
Summary: Studies show that with a doubling of CO2 concentration, the surface temperature of the Caspian Sea and the Black Sea will increase by about 2.5 degrees Celsius, while a reduction in wind stress will cause deceleration of the main gyre circulations. Increased future evaporation will result in a decrease in sea level, potentially impacting ecosystems, fisheries, and coastal infrastructures.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Ahmad Manbohi, Ali Mehdinia, Reza Rahnama, Reza Dehbandi
Summary: The study investigated the occurrence of microplastics (MPs) in inshore and offshore surface waters of the southern Caspian Sea. The data showed that MPs were widely distributed in the thirteen studied stations, with non-normally distribution observed among the stations. The average concentration of microplastics in the selected stations was 0.246 +/- 0.020 MP/m(3).
Review
Environmental Sciences
Kyle Proctor, Seyed M. H. Tabatabaie, Ganti S. Murthy
Summary: The Food-Energy-Water (FEW) nexus has gained increasing attention over the past decade, with discussions and research funding on the rise. The nexus is approached from various perspectives with different motivations and analytical methodologies, making it important to understand these motivations to evaluate the value of the research.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Aliakbar Hedayati, Ahmad Reza Pirali Zefrehei, Hasan Sahraei
Summary: Monitoring changes in qualitative parameters of Gomishan wetland and Gorgan Bay using satellite imagery showed increasing trends in chlorophyll-a and water temperature, while there was a decreasing trend in Secchi disk transparency range until 2018. The year 2009 had the lowest fluctuations. The study highlights the impact of ecological conditions and human activities on water quality parameters in these coastal ecosystems, and emphasizes the importance of satellite data for studying similar ecosystems at different time intervals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Sifan A. Koriche, Joy S. Singarayer, Hannah L. Cloke
Summary: This study investigated the water budget variation in the Caspian Sea drainage basin and its potential impact on the Caspian Sea level during the 21st century. Most future projections show drying over the century, with water extraction rates as important as climate in controlling future levels. Caution should be exercised when using individual models to inform policy as projected Caspian Sea levels vary greatly between models.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Jun Zhao, Yaqian Chen, Jinchao Xu, Juliang Jin, Guoqing Wang, Asaad Shamseldin, Yan Guo, Liang Cheng
Summary: This study focuses on the regional water security evaluation and risk control model, using Jiangsu province as an example. By establishing an evaluation index system and utilizing a flexible analysis approach, effective solutions for water security management in the region are proposed.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Studies
ZhiQiang Sun, Qizhen Wang
Summary: The study utilized a system GMM model to analyze the impact of natural resources on environmental pollution and economic growth in 30 regions of China from 2000 to 2019. The findings suggest that natural resource development has significant negative effects on both the environment and economic growth, confirming the presence of a resource curse effect, highlighting the need for policies to mitigate the imbalanced impacts.
Article
Environmental Studies
Xiaoting Lv, Haipeng Shan, Jiajia Zheng, Abdelmohsen A. Nassani, Rima H. Binsaeed, Phan The Cong, Nguyen Thi Thuy Vinh
Summary: This study investigates the impact of government effectiveness on the value addition of China's natural resource market, along with other variables like GDP per capita and energy intensity, for the period 1996-2021. Augmented Dickey-Fuller (ADF) and Phillips-Perron (PP) tests are used to ensure the stationarity of variables and validate their integration order as 1. The results from the nonlinear autoregressive distributed lag (NARDL) model show an asymmetric impact of government effectiveness on the value addition of the natural resource market in both the long run and the short run. Wald test and dynamic multiplier graphs confirm this asymmetric relationship. A positive shock to government effectiveness reduces natural resource rent and adds value to the market by improving efficiency, while a negative shock diminishes value addition by increasing resource rent and reducing market efficiency. The study suggests that the government should increase efforts to enhance resource market efficiency and explore new markets to add value.
Article
Green & Sustainable Science & Technology
Mahdieh Arabzadeh Saheli, Kamran Lari, Gholamreza Salehi, Masoud Torabi Azad
Summary: The application of hybrid renewable energy systems (HRES) is increasing due to low-carbon policies and rising energy demand. This research investigates the feasibility of a hybrid wave-photovoltaic (PV) system in three ports in Iran using MATLAB/Simulink. The findings show that the system's maximum energy production occurs in May and minimum in November. The annual energy generation in the ports ranges from 11607.4 kWh to 13419.2 kWh. The levelised cost of electricity (LCOE) indicates that one port is the best location for the hybrid system. However, considering Iran's economic conditions, the system is currently not economically viable, but it is anticipated to become feasible in the future with the elimination of energy subsidies.
Article
Environmental Sciences
Marzieh Mokarram, Hamid Reza Pourghasemi, Tam Minh Pham
Summary: This study examines the water quality of the Caspian Sea by analyzing the presence of nutrients and heavy metals. Water samples from 22 stations were collected and tested for nutrient and heavy metal levels. The study uses fuzzy method to create water quality maps and applies ANNs methods to predict microbial contamination in the future. The findings indicate higher nutrient levels in the western and northwestern areas (about 40.2% of the region), while increased urbanization contributes to high pollution in the eastern and northeastern shores (about 70.1% of the region). The LSTM method shows the highest accuracy among other ANNs methods and suggests a recent increase in pollution levels (R2Water quality = 0.940, R2OECD = 0.950, R2TRIX = 0.840). The study recommends targeted research to understand the causes and control pollution in the Caspian Sea given the predicted increase in pollution.
MARINE POLLUTION BULLETIN
(2023)
Article
Food Science & Technology
Odi Fawwaz Alrebei, Tareq Al-Ansari, Mohammad S. Al-Kuwari, Abdulkarem Amhamed
Summary: Finding a balance between production capacity and increasing food demand is crucial for achieving food security. Decision-makers need to consider the interplay and trade-offs among energy, water, and food resources to achieve sustainable development on a national scale. This paper evaluates Qatar's Energy-Water-Food Nexus Profile by using past data trends to make future projections, and analyzes the correlations and required actions to achieve food self-sustainability.
Article
Environmental Sciences
Hui Zhu, Gongxu Jia, Qingling Zhang, Shan Zhang, Xiaoli Lin, Yanmin Shuai
Summary: This study proposed a new method for automatic identification of offshore drilling rigs based on Landsat-7 ETM+ images, using the Caspian Sea as the research area. By building a cloud and cloud shadow-free Normalized Difference Water Index (NDWI) composite image and applying threshold segmentation, a high accuracy rate of 90.2% for offshore drilling rig detection in the Caspian Sea was achieved. This method can be used to quickly identify offshore drilling rigs within a large water surface area, providing significant value for exploring the exploitation status of offshore oil and gas resources.
Article
Environmental Sciences
Igor Boninsenha, Everardo Chartuni Mantovani, Marcos Heil Costa, Aziz Galvao da Silva Junior
Summary: This study proposes the integration of a hydroclimatic monitoring system and linear programming method to optimize agricultural net benefit in Western Bahia. The results show that the model can optimize net economic benefit in irrigated areas through continuous irrigation, and it suggests not to crop in rainfed areas to avoid significant yield reduction.
Article
Computer Science, Artificial Intelligence
Xing Gao, Siyu Gong, Ying Wang, Xifan Wang, Manting Qiu
Summary: This paper examines the strategic interaction between firms and hackers in a resource sharing environment and finds that stricter security standards should be formulated from a socially optimal standpoint. It also suggests that compensation mechanisms may harm each firm.
EXPERT SYSTEMS WITH APPLICATIONS
(2022)
