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Water-energy nexus is an emerging issue that receives considerable attention in the world in general and in the Gulf Cooperation Council (GCC) countries in particular. The GCC countries depend mainly on energy generated from fossil fuels to produce drinking water. Yet, the amount of water-related energy use in Bahrain remains unexplored. This study aims to quantify the amount of energy used in the water supply cycle for the first time in Bahrain using quantitative methods. A bottom-up approach for data collection was adopted where data for the three main stages of the water supply in Bahrain: water production, water transmission, and water distribution were collected. Results show that the water production stage consumes about 97% of the total energy consumption in the water supply sector, followed by water transmission (2.9%) and water distribution (0.1%). Comparisons conducted with best practices in the world show that water desalination plants in Bahrain consume relatively high amounts of energy to produce water based on the desalination technology used. This study calls for focusing on the production stage in achieving energy efficiency since it is the largest consumer and where losses are occurring based on the benchmarking. This study also recommends investigating the share of electricity and thermal energy consumed in the water supply cycle in Bahrain in addition to the wastewater treatment sector. This is imperative to provide a holistic overview of the water-related energy use in Bahrain.

Water-energy nexus is an emerging issue that receives considerable attention in the world in general and in the Gulf Cooperation Council (GCC) countries in particular. The GCC countries depend mainly on energy generated from fossil fuels to produce drinking water. Yet, the amount of water-related energy use in Bahrain remains unexplored. This study aims to quantify the amount of energy used in the water supply cycle for the first time in Bahrain using quantitative methods. A bottom-up approach for data collection was adopted where data for the three main stages of the water supply in Bahrain: water production, water transmission, and water distribution were collected. Results show that the water production stage consumes about 97% of the total energy consumption in the water supply sector, followed by water transmission (2.9%) and water distribution (0.1%). Comparisons conducted with best practices in the world show that water desalination plants in Bahrain consume relatively high amounts of energy to produce water based on the desalination technology used. This study calls for focusing on the production stage in achieving energy efficiency since it is the largest consumer and where losses are occurring based on the benchmarking. This study also recommends investigating the share of electricity and thermal energy consumed in the water supply cycle in Bahrain in addition to the wastewater treatment sector. This is imperative to provide a holistic overview of the water-related energy use in Bahrain.

Mitigating climate change to limit the global temperature increase (relative to pre-industrial temperatures) to 2 °C is receiving considerable attention around the world. Here, historical and future carbon dioxide equivalent (CO2e) emissions from municipal solid waste (MSW) in Bahrain were calculated using the revised Intergovernmental Panel on Climate Change (IPCC) 1996 and IPCC 2006 methods. The extent to which waste-to-energy (WtE) technologies can contribute to climate change mitigation was assessed by performing a multicriteria analysis. The results indicated that CO2e emissions from MSW in Bahrain have been increasing since the Askar landfill was constructed in 1986. Emission recalculations indicated that CO2e emissions from MSW contribute 6.2% of total emissions in Bahrain rather than the 11.6% reported in the second national communication. Methane emissions from MSW in 2030 are predicted to be 22–63 Gg. The WtE technologies anaerobic digestion and landfill gas recovery gave the best and gasification the worst multicriteria analysis model results. A database of WtE plants around the world should be compiled to allow decisions around the world to be based on best practices. The potential for maximizing energy recovery and decreasing costs needs to be investigated to allow WtE plants to compete better with renewable and nonrenewable energy sources.

Mitigating climate change to limit the global temperature increase (relative to pre-industrial temperatures) to 2 °C is receiving considerable attention around the world. Here, historical and future carbon dioxide equivalent (CO2e) emissions from municipal solid waste (MSW) in Bahrain were calculated using the revised Intergovernmental Panel on Climate Change (IPCC) 1996 and IPCC 2006 methods. The extent to which waste-to-energy (WtE) technologies can contribute to climate change mitigation was assessed by performing a multicriteria analysis. The results indicated that CO2e emissions from MSW in Bahrain have been increasing since the Askar landfill was constructed in 1986. Emission recalculations indicated that CO2e emissions from MSW contribute 6.2% of total emissions in Bahrain rather than the 11.6% reported in the second national communication. Methane emissions from MSW in 2030 are predicted to be 22–63 Gg. The WtE technologies anaerobic digestion and landfill gas recovery gave the best and gasification the worst multicriteria analysis model results. A database of WtE plants around the world should be compiled to allow decisions around the world to be based on best practices. The potential for maximizing energy recovery and decreasing costs needs to be investigated to allow WtE plants to compete better with renewable and nonrenewable energy sources.

AbstractGlobal CO2emissions from different industries have been increasing at an alarming rate. This growth is outpacing the efforts, nations are putting in place to reduce their carbon footprints. In this topical review, we critically analyze the level of CO2emissions on a global scale and across various industries and activities within them and the dominant anthropogenic forcing instability. The global CO2emission from various economic sectors such as industries, transportation and variety of waste sources were traced globally and regionally. To contextualize our review, the sector wise CO2emission trends data for a period more than a decade is reviewed which highlighted the main sources of emissions. The data shows the overall reduction of carbon footprints and its progress across various sectors is very limited. The governing factors for this continued global pattern can be ascribed to two main factors: high consumer demands, and poor efforts towards shifting low and zero carbon services across all sectors. Some efforts have been witnessed to shift towards clean fuels and renewables, particularly in Europe and North America. However, rapid growth in industrialization limits the shifting of fossil-based energy systems towards less harmful systems. In Asia, particularly in eastern, southern, and south-eastern regions, the carbon footprints were found to increased owing to a huge demand for materials production, travelling and energy services. Therefore, it is of utmost importance to identify, understand and tackle the most persistent and climate-harmful factors across all industries and drive such policies to substitute the fossil fuels with renewables.

AbstractGlobal CO2emissions from different industries have been increasing at an alarming rate. This growth is outpacing the efforts, nations are putting in place to reduce their carbon footprints. In this topical review, we critically analyze the level of CO2emissions on a global scale and across various industries and activities within them and the dominant anthropogenic forcing instability. The global CO2emission from various economic sectors such as industries, transportation and variety of waste sources were traced globally and regionally. To contextualize our review, the sector wise CO2emission trends data for a period more than a decade is reviewed which highlighted the main sources of emissions. The data shows the overall reduction of carbon footprints and its progress across various sectors is very limited. The governing factors for this continued global pattern can be ascribed to two main factors: high consumer demands, and poor efforts towards shifting low and zero carbon services across all sectors. Some efforts have been witnessed to shift towards clean fuels and renewables, particularly in Europe and North America. However, rapid growth in industrialization limits the shifting of fossil-based energy systems towards less harmful systems. In Asia, particularly in eastern, southern, and south-eastern regions, the carbon footprints were found to increased owing to a huge demand for materials production, travelling and energy services. Therefore, it is of utmost importance to identify, understand and tackle the most persistent and climate-harmful factors across all industries and drive such policies to substitute the fossil fuels with renewables.

AbstractBackgroundThe Gaza Strip in Palestine is currently facing a serious electrical power deficit due to the local political situation. In addition, the main source of energy in Gaza Strip is traditional fossil fuel which is environmentally harmful. To ensure that electrical power in the Gaza Strip can be maintained continuously without any day-long power failures is a challenging task for decision-makers. The lack of reliable electrical power has motivated the inhabitants of the Gaza Strip to adopt an alternative source of energy which is reliable, sustainable, environmentally friendly and abundantly exists. Therefore, they decided to implement solar energy systems to power their houses in order to replace or to complement the traditional sources of energy. This has motivated the current study which aims to find out whether solar energy can be an alternative source of energy to the conventional energy for domestic use in the Gaza Strip to sustain inhabitants’ daily life. This has been tested by studying the readiness and attitudes of household people in the Gaza Strip to adopt solar energy in their homes. This work is a novel study in its contents. According to the authors’ knowledge, this is one of few studies considering this topic.MethodsTo understand the reasons for successful solar energy system adoption by individual households in Gaza, the authors have created an electronic questionnaire. The dependent variable is chosen to be the adoption of energy, and independent variables are the environmental benefit, the cost of adoption of solar energy, and the economic savings of solar energy measured. The electronic questionnaire consists of two parts: part one consists of personal questions; the second part consists of 22 items on a five-point Likert scale and the studied sample population consists of the 10% of the Al-Shifa Medical Complex employees (1819 employees). The electronic questionnaires were electronically circulated to the study sample. The data were then collected and analyzed using an SPSS program.ResultsThe authors found that only 19.5% of the studied sample population have installed solar energy systems on their houses. The results show that some factors, including the governorate in which employees are living, house ownership, total cost of energy/month, available space to install the solar panels, and the desire to share the cost with neighbors did not affect the decision to use solar energy. On the contrary, the type of house and the knowledge of renewable energy influenced the decision. Compared to previous studies, we also found that knowledge is an important factor in implementing renewable energy (Zakaria et al. in Earth Environ Sci 268:012105. https://doi.org/10.1088/1755-1315/268/1/012105, 2019, Szakály et al. in Energies 14:1–25. https://doi.org/10.3390/en14010022, 2021). Though our study did not reveal an impact of cost of installing the system on making the decision to adopt renewable energy (Assali et al. in Renew Energ 136:254–263. https://doi.org/10.1016/j.renene.2019.01.007, 2019), we will it regard it as an important factor.ConclusionThe adoption of solar energy in Gaza is limited. The kind of the house and the knowledge of renewable energy are imperative to increase utilization of solar energy by households in Gaza. Therefore, it is important to start a public information campaign on the advantages of solar energy through the universities by giving classes to all university students and/or by giving general talks for the public. To conquer the limiting factors, the public authority ought to consider the framework and support the neighborhood occupants.

AbstractBackgroundThe Gaza Strip in Palestine is currently facing a serious electrical power deficit due to the local political situation. In addition, the main source of energy in Gaza Strip is traditional fossil fuel which is environmentally harmful. To ensure that electrical power in the Gaza Strip can be maintained continuously without any day-long power failures is a challenging task for decision-makers. The lack of reliable electrical power has motivated the inhabitants of the Gaza Strip to adopt an alternative source of energy which is reliable, sustainable, environmentally friendly and abundantly exists. Therefore, they decided to implement solar energy systems to power their houses in order to replace or to complement the traditional sources of energy. This has motivated the current study which aims to find out whether solar energy can be an alternative source of energy to the conventional energy for domestic use in the Gaza Strip to sustain inhabitants’ daily life. This has been tested by studying the readiness and attitudes of household people in the Gaza Strip to adopt solar energy in their homes. This work is a novel study in its contents. According to the authors’ knowledge, this is one of few studies considering this topic.MethodsTo understand the reasons for successful solar energy system adoption by individual households in Gaza, the authors have created an electronic questionnaire. The dependent variable is chosen to be the adoption of energy, and independent variables are the environmental benefit, the cost of adoption of solar energy, and the economic savings of solar energy measured. The electronic questionnaire consists of two parts: part one consists of personal questions; the second part consists of 22 items on a five-point Likert scale and the studied sample population consists of the 10% of the Al-Shifa Medical Complex employees (1819 employees). The electronic questionnaires were electronically circulated to the study sample. The data were then collected and analyzed using an SPSS program.ResultsThe authors found that only 19.5% of the studied sample population have installed solar energy systems on their houses. The results show that some factors, including the governorate in which employees are living, house ownership, total cost of energy/month, available space to install the solar panels, and the desire to share the cost with neighbors did not affect the decision to use solar energy. On the contrary, the type of house and the knowledge of renewable energy influenced the decision. Compared to previous studies, we also found that knowledge is an important factor in implementing renewable energy (Zakaria et al. in Earth Environ Sci 268:012105. https://doi.org/10.1088/1755-1315/268/1/012105, 2019, Szakály et al. in Energies 14:1–25. https://doi.org/10.3390/en14010022, 2021). Though our study did not reveal an impact of cost of installing the system on making the decision to adopt renewable energy (Assali et al. in Renew Energ 136:254–263. https://doi.org/10.1016/j.renene.2019.01.007, 2019), we will it regard it as an important factor.ConclusionThe adoption of solar energy in Gaza is limited. The kind of the house and the knowledge of renewable energy are imperative to increase utilization of solar energy by households in Gaza. Therefore, it is important to start a public information campaign on the advantages of solar energy through the universities by giving classes to all university students and/or by giving general talks for the public. To conquer the limiting factors, the public authority ought to consider the framework and support the neighborhood occupants.

Sustainable buildings revolve around the concept of sustainability – to manage limited resources in order to meet the needs of the present generation without compromising the future generations. The present research aims to evaluate both practical and theoretical application levels of sustainable building constructions in the Kingdom of Bahrain via sustainability indicators. To carry out this research, the population size is based on architects, contractors, and policy and decision makers from the Kingdom of Bahrain, this research adopted a quantitative research approach by using survey questionnaires and the data analysis was performed with the statistical software Statistical Package for Social Sciences (SPSS). Finally, the result of this study is accumulated and presented, followed by recommendations for further research. Our results revealed that the Kingdom of Bahrain weakly supports the level of sustainable building constructions, and it is important now, to integrate renewable energy into buildings, particularly after the increasing prices of fossil fuel "oil and gas".