Increasing Greenhouse Gas Research Articles

ASEAN Financing Climate Policy: The Effect of Fossil Fuel Subsidies on CPI and GHGs

Abstract The Association of Southeast Asian Nations (ASEAN) employs fossil fuel subsidies to promote economic development, although such action may have a negative effect on the environment. This study employs panel data analysis to examine whether ASEAN’s fossil fuel (oil, gas, coal, and electricity) subsidies decrease the consumer price index (CPI; Model 1) and, on the other hand, increase greenhouse gas emissions (GHGs; Model 2) from energy levels, using yearly data of five ASEAN countries from 2010 to 2021. The findings demonstrate that ASEAN’s fossil fuel subsidies for oil, gas, coal and electricity do not reduce the CPI and, therefore, cannot be interpreted as reducing inflation. In addition, there is no effect of gas and coal subsidies on GHGs. This might be due to the small average of the five ASEAN countries from 2010 to 2021 in terms of gas and coal subsidies. Following the expectation, oil subsidy, which is the highest amount on average (4,635.44 real 2021 million USD), has a strong positive effect on GHGs. However, electricity subsidy, which is the second highest amount on average (1,963.22 real 2021 million USD), has a significant negative effect on GHGs.

FORECAST EVOLUTION OF THE VEHICLE FLEET IN SPAIN

There is a broad consensus among the scientific community on the influence of increasing greenhouse gas (GHG) emissions on global temperature. As stated in the Emissions Database for Global Atmospheric Research (EDGARv6.0)

A Review on the Vertical Coordinate Systems used in Oceanic and Atmospheric Circulation Numerical Model

In a numerical method for the study of the circulation model, various vertical coordinate systems are used to simulate the physical response of the ocean and atmosphere to the increasing greenhouse gas emission. In this study, four types of vertical coordinate systems frequently used in oceanic and atmospheric circulation numerical models, i.e., height, general, pressure, and normalized vertical coordinate systems, respectively are introduced. Finally, the hydrostatic pressure equation, vertical velocity, equation of horizontal motion, and continuity equation expressed in a vertical coordinate system were introduced, and the pros and cons of the vertical coordinate system were summarized to promote the accuracy of numerical model development.

문화예술부문에 대한 재정지출이 온실가스배출에 미치는 영향분석

As the culture and arts sector develops alongside economic growth, the increase in greenhouse gas emissions highlights the importance of environmental considerations in the context of climate change. This study employs a two-step estimation method using a dynamic panel model to analyze the impact of fiscal expenditure for the culture and arts sector on greenhouse gas emissions, distinguishing between direct and indirect effects. The first-stage analysis reveals that increased fiscal expenditure in the culture and arts sector positively impacts regional economic growth. The second-stage analysis indicates the presence of an inverted U-shaped curve between per-capita GRDP and greenhouse gas emissions, supporting the Environmental Kuznets Curve hypothesis. While fiscal expenditure for the culture and arts sector directly increases greenhouse gas emissions, it indirectly reduces them through regional economic growth. However, the direct effect is greater and more significant than the indirect effect, resulting in a net increase in greenhouse gas emissions. These findings suggest that for effective greenhouse gas reduction policies at the local government level, it is necessary to improve energy efficiency in cultural and artistic activities and promote the use of eco-friendly energy sources. Additionally, there is a need for support that can raise environmental awareness among cultural and artistic professionals and induce changes in their energy consumption patterns.

Selection of Suitable Organic Amendments to Balance Agricultural Economic Benefits and Carbon Sequestration.

Long-term excessive use of fertilizers and intensive cultivation not only decreases soil organic carbon (SOC) and productivity, but also increases greenhouse gas emissions, which is detrimental to sustainable agricultural development. The purpose of this paper is to identify organic amendments suitable for winter wheat growth in the North China Plain by studying the effects of organic amendments on the economic benefits, carbon emissions, and carbon sequestration for winter wheat fields and to provide a theoretical basis for the wide application of organic amendments in agricultural fields. The two nitrogen rates were N0 (0 kg ha-1) and N240 (240 kg ha-1), and the four organic amendments were straw, manure, mushroom residue (M R), and biochar. The results showed that, compared to N0, N240 significantly increased the yield by 244.1-318.4% and the organic carbon storage by 16.7-30.5%, respectively, but increased the carbon emissions by 29.3-45.5%. In addition, soil carbon stocks increased with all three types of organic amendments compared to the straw amendment, with the biochar treatment being the largest, increasing carbon storage by 13.3-33.6%. In terms of yield and economic benefits, compared to the straw amendment, the manure and biochar amendments increased winter wheat yields by 0.0-1.5% and 4.0-13.3%, respectively, and M R slightly decreased wheat yield; only the economic benefit of the M R amendment was greater than that of the straw amendment, with an increase in economic benefit of 1.3% and 8.2% in the 2021-2022 and 2022-2023 seasons, respectively. Furthermore, according to the net ecosystem productivity (NEP), N0 was the source of CO2, while N240 was a sink of CO2. The TOPSIS results showed that N240 with a mushroom residue amendment could be recommended for increasing soil carbon stocks and economic benefits for winter wheat in the NCP and similar regions. Low-cost M R can increase farmer motivation and improve soil organic carbon, making a big step forward in the spread of organic materials on farmland.

The driving of North American climate extremes by North Pacific stationary-transient wave interference

Wave interference between transient waves and climatological stationary waves is a useful framework for diagnosing the magnitude of stationary waves. Here, we find that the wave interference over the North Pacific Ocean is an important driver of North American wintertime cold and heavy precipitation extremes in the present climate, but that this relationship is projected to weaken under increasing greenhouse gas emissions. When daily circulation anomalies are in-phase with the climatological mean state, the anomalous transport of heat and moisture causes the enhanced occurrence of cold extremes across the continental U.S. and a significant decrease of heavy precipitation extremes in the western U.S. In a future emissions scenario, the climatological stationary wave over the eastern North Pacific weakens and shifts spatially, which alters and generally weakens the relationship between wave interference and North American climate extremes. Our results underscore that the prediction of changes in regional wave interference is pivotal for understanding the future regional climate variability.

Potential Carbon Content and Inorganic Carbon Sequestration in the Karst Area of Silokek Geopark, Sijunjung Regency

Climate change caused by increasing greenhouse gas emissions, especially CO2, and deforestation, is an urgent global issue. The REDD+ program initiated by the UN aims to reduce carbon emissions and increase carbon storage in forests. One of the forests that can reserve carbon is the karst area with the ability to reserve carbon dioxide (CO2). This study aims to determine the potential carbon content and carbon dioxide (CO2) sequestration. This study was conducted using the chip sampling method and the XRF (X-ray Fluorescence) method analysis. Based on the research results, it is known that the Silokek Geopark karst area has three different limestone rock characteristics, and sample 3 is the type of rock with the highest CaO percentage. The potential inorganic carbon content is 4,908.07 tons/ha and carbon absorption is 18,012.60 tons/ha, categorized as high. The inorganic carbon content in the Silokek Geopark area is lower than the Biduk-biduk Karst area which is influenced by the area volume area and type of rock composition.

Optimal design of sizing and allocations for highway electric vehicle charging stations based on a PV system

The world’s demand for fossil fuels has recently increased significantly for both transportation and electric power generating sectors. Using these resources not only results in high costs and depletion of them but also increases greenhouse gas emissions and pollution. The electric vehicle (EV) market is growing globally, aiming to face climate change due to greenhouse gas (GHG) emissions and to reduce reliance on fossil fuels. However, the long charging time of EVs and the shortage of charging outlets limits the global adoption of EVs, especially on highways where the problem of accessibility to the electricity distribution grid appears. These issues can be faced by the good planning of charging infrastructure. However, this planning is a multidisciplinary field that includes electricity generation, transportation networks, EVs’ characteristics, and driver behavior. A methodology to provide the optimal locations and sizing of electric vehicle charging stations with their own electricity generation and storage using photovoltaic (PV) and energy storage systems on highways considering different factors is proposed in this paper. This paper takes a section of the western desert highway in Egypt connecting Assiut and Cairo cities as a case study. Four scenarios are proposed for the design of EV charging stations’ locations and sizing which are centralized charging stations, two-way charging stations, utilizing oil stations’ locations, and distributed fixed sizing charging points with a comparison between them. The work also discusses the potential effects of highway slope, wind speed, and number of passengers on the location problem. The results can be used to optimize the design of EV charging stations along highways for a completely sustainable system.

Influence of the Surrounding Environment Steam Power Plant (PLTU) Kema Satu Village, Kema District, North Minahasa District

In today's era, it is important to understand the impact of Steam Power Plant (PLTU) operations on the environment and economy around the plant site, especially in Kema Satu Village. PLTUs, which harness the kinetic energy of steam from geothermal heat, are widely used due to their ease of operation and accessibility of fuel. However, they also have significant impacts, both positive and negative, on local communities. This study aims to assess the environmental and economic impacts of PLTU Sulut 3 on the surrounding area, evaluate its operational efficiency, and determine its contribution to stabilizing and improving electricity supply in North Sulawesi and Gorontalo. The research method used was a combination of qualitative and quantitative techniques to ensure a comprehensive analysis. Data was collected through observation, interviews, and analysis of relevant secondary data. The results show that the PLTU in Kema Satu Village has significant impacts on the local environment, including air and water pollution, soil degradation, and ecosystem disruption. In addition to providing electricity supply and employment opportunities for the local community, the PLTU has also triggered property price inflation and shifts in the local economy. Other negative impacts include damage to the local agricultural sector and increased greenhouse gas emissions. The implications of this study emphasize the need for careful planning, community involvement, and the implementation of sustainable practices to mitigate negative effects on residents and the environment.

Profitability, greenhouse gas emissions and feed-food competition of strategies to exploit compensatory growth in Uruguayan weanling-to-beef systems

This study evaluates nutritional and management strategies aimed at exploiting compensatory growth (CG) in weanling-to-beef systems in Uruguay. The evaluation encompassed productivity, economic viability, and environmental impact. The Grange Beef System Model, augmented with Uruguayan national technical coefficients, was used. Four weanling-to-beef systems were modeled: 1) forage only with no CG (FNC), 2) forage only with management improvements to exploit CG (forage with CG; FWC), 3) forage with concentrate supplementation during two winter feeding periods (forage with supplementation; FWS), and 4) forage with supplementation during the first winter followed by feedlot finishing (forage with feedlot; FWF). The systems purchased spring-born Angus calves at 8 months of age and 180 kg live weight (LW) and finished with a slaughter weight of 550 kg. FWS system was used as reference with the performance parameters obtained during 5 years of systems experimentation. FNC used the performance parameters of FWS but during winter periods, LW gain was lower due to the absence of concentrate supplementation. FWC used the previous FNC performance parameters, but increased LW gain after the first and second winter restriction period due to improved grazing management practices thereby exploiting CG. FWF is based on the FWS system but instead of moderate supplementation during the second winter (concentrate: 3.0 kg/d/head), steers are feedlot finished (concentrate: 9.5 kg/d/head) exploiting CG due to previous summer-autumn restriction period. FNC and FWC increased age at slaughter, reducing net beef production by 21 and 11 % relative to FWS, respectively. In contrast, FWF reduced age at slaughter, increasing beef production by 93 % compared to FWS. FWS and FNC had similar profitability expressed in net margin; however, FWC and FWF increased net margin by 33 and 107 % compared to the FWS, respectively. FNC and FWC increased greenhouse gas (GHG) emissions intensity per beef produced by 17 and 3 % relative to FWS, respectively; meanwhile, FWF reduced GHG intensity by 10 % relative to FWS. Due to the inclusion of concentrates in the diet for FWS and FWF systems, the only net producers of human edible energy and protein were the forage-only systems (FNC and FWC). In summary, strategically harnessing CG in both pasture and feedlot finishing stages within a weanling-to-beef system in Uruguay successfully increased profitability. Feedlot finishing reduced GHG emissions per beef produced. However, the forage-only farm systems emerged as the only net producers of human-edible energy and protein.

Harnessing Solar Energy for Green EV Charging Stations at Indian Highways

The modern-day world is largely dependent on transportation. This is burdening and exhausting fossil fuel resources. In converse, this also increases greenhouse gases. People and the Automobile industry are now focusing on greener and cleaner alternatives. Electric Vehicles, despite having range anxiety, and a lack of proportionate battery charging/swapping infrastructure are a far more viable option than their ICE counterparts. Being an emerging economy, it is primarily focused on developing infrastructure. This is the best time for India to make its resources self-reliant and multi-purpose serving. India is a populous country, and meeting its energy requirements is difficult, let alone charging stations at remote locations. According to reports signaled by NITI Aayog, India is ambitious of converting 30% of its vehicles to EVs. This paper analyses the feasibility and requirements for setting up charging stations at various public and remote locations. Such an analysis would help in drawing significant conclusions and possible solutions to reduce the range anxiety of Electric Vehicles. Keywords: Electric Vehicle, charging station, Toll booth, highways

MODEL MATEMATIKA PEMANASAN GLOBAL PADA KEHIDUPAN PESISIR

Global warming has become one of the big problems being faced in the 21st century. Global warming and depletion of the ozone layer due to excessive increases in Green House Gas (GHG) emissions in the atmosphere have a negative impact on the sustainability of coastal ecosystems. This research aims to describe the impact of rapid GHG emissions on coastal life, and this research also wants to determine the mathematical relationship between increasing GHGs and global warming. Rapid GHG emissions from various sources also drive global warming and cause several natural disasters. The method used in this research is the descriptive method. This research develops a mathematical model using four variables. Based on the results of simulation analysis, it shows that GHG and global warming can be controlled by ehriching coastal forests, but if not, the human population could lose the ability to survive and around one third of the total forest ecosystem will be lost by the end of this century

Analisis Penerapan Faktor-Faktor Green Supply Chain pada Proyek Konstruksi Gedung di Kota Palangka Raya

Climate change due to increased greenhouse gas emissions and resource depletion is one of the biggest challenges of the 21st century. The construction sector contributes to economic development by providing equipment and physical infrastructure. However, there are negative impacts such as waste generation and environmental pollution, especially in developing countries. Green supply chain as a way to reduce the negative environmental impact of construction projects. Green supply chain practices are considered as environmentally friendly practices that include water efficiency, energy efficiency, waste management, environmental conservation, recycling and reuse. But the lack of research on green supply chains has led to very little information about the application of green supply chains in building construction projects. The purpose of this study was to determine and analyze the dominant factors in the application of green supply chain factors in building construction projects in Palangka Raya City. This research uses quantitative descriptive methods and data collection in the form of surveys and distributes questionnaires to 36 contractors with a return rate of 89%. This study identified 68 green supply chain factors applied to building construction projects in Palangka Raya City. The results showed three dominant factors in the application of green supply chain factors in building construction projects in Palangka Raya City as a whole: There are performance evaluations for workers, Quality testing is carried out on installed mechanical and electrical installations, There are SOPs for work control and supervision.

Dynamic Simulation of Energy Scenarios in the Transition to Sustainable Mobility in the Ecuadorian Transport Sector

In Ecuador, the growth of the transportation sector has significantly increased greenhouse gas emissions. According to experts, this sector currently contributes to 49.8% of total greenhouse gas emissions in this country. This poses significant challenges for environmental sustainability, emphasizing the urgent need for effective strategies to mitigate these emissions and promote environmentally friendly practices. Therefore, this study focuses on developing a dynamic simulation of energy scenarios for the year 2035 in the transportation sector, with the goal of transitioning to sustainable mobility, as fossil fuels are the main pollutants in the country. This study proposes system dynamics models using VENSIM 6.0b software to estimate the total energy demand and pollutant emissions in the transportation sector. The results suggest that if Ecuador aligns with global mobility trends and implements public policies promoting the use of electric vehicles, total CO2 emissions could potentially decrease from 50,161,432 kilobarrels of oil equivalent (kBOE) to 20,589,720 kBOE by the year 2035.

Modified data classification for extreme values in Şen’s innovative trend analysis: A comparative trend study for the Aegean and Eastern Anatolia Regions of Türkiye

The increase in greenhouse gases in the atmosphere has worsened global warming, and marked changes have been observed in meteorological and climatic events, especially since the early 2000s. Trend analysis studies are important for determining changes in meteorological and climatic events over time. This study investigated the trends of maximum precipitation and minimum temperature in the Aegean Region and Eastern Anatolia Region of Türkiye by conducting an innovative trend analysis (ITA), the Mann–Kendall (MK) test, and linear regression analysis (LRA). As a method, ITA has been used together with traditional methods in the last decade, and its advantages have been demonstrated in comparative trend studies. An important contribution of ITA is that it can categorize datasets according to their size (low, medium, and high). The classification technique of the ITA method includes dividing the sorted dataset into three equal parts and separately examining the trends of low, medium, and high data values. This approach is reasonable for datasets with low skewness (or normally distributed series). However, the normal distribution acceptance of ITA data classification is insufficient for trend analysis of data series with extreme values. Therefore, we propose a modified data classification method to rationally examine skewed datasets with the use of quartiles. Our study was performed for the trend analysis of maximum rainfall and minimum temperature data in two regions located in the west and east of Türkiye showing different climatic characteristics. In the first part of the study in which the numerical trend analysis of ITA was evaluated, the MK and LRA methods showed similar results, whereas the ITA detected trends at a greater number of stations owing to its sensitivity feature in detecting trends. In the second part, which included data classification in trend analysis, the equal split data classification used in the ITA and the modified data classification proposed in the study were compared. The comparative results of the trend analysis of the maximum rainfall and minimum temperature data showed the superiority of the proposed data classification in examining the trend of extreme values, especially for maximum rainfall data with relatively high skewness.

Meta-analyses reveal climate change impacts on an ecologically and economically significant oyster in Australia

Meta-analyses reveal climate change impacts on an ecologically and economically significant oyster in Australia

Innovative Strategies for Upcycling Agricultural Residues and Their Various Pharmaceutical Applications.

This review investigates innovative strategies for upcycling agricultural residues into valuable pharmaceutical compounds. The improper disposal of agricultural residues contributes to significant environmental issues, including increased greenhouse gas emissions and ecosystem degradation. Upcycling offers a sustainable solution, transforming these residues into high-value bioproducts (antioxidants, antitumor agents, antidiabetic compounds, anti-inflammatory agents, and antiviral drugs). Nanotechnology and microbial biotechnology have a crucial role in enhancing bioavailability and targeted delivery of bioactive compounds. Advanced techniques like enzymatic hydrolysis, green solvents, microwave processing, pyrolysis, ultrasonic processing, acid and alkaline hydrolysis, ozonolysis, and organosolv processes are explored for their effectiveness in breaking down agricultural waste and extracting valuable compounds. Despite the promising potential, challenges such as variability in residue composition, scalability, and high costs persist. The review emphasizes the need for future research on cost-effective extraction techniques and robust regulatory frameworks to ensure the safety, efficacy, and quality of bioproducts. The upcycling of agricultural residues represents a viable path towards sustainable waste management and production of pharmaceutical compounds, contributing to environmental conservation and public health improvements. This review provides an analysis of the current literature and identifies knowledge gaps, offering recommendations for future studies to optimize the use of agricultural residues in the drug industry.

Investigating carbon footprints of the Malawi University of Science and Technology

Background: Increasing greenhouse gasses concentration in the atmosphere is perturbing the environment to cause grievous global warming and associated consequences. Following the rule that only measurable is manageable, mensuration of greenhouse gas intensiveness of different products, bodies, and processes is going on worldwide, expressed as their carbon footprints (CF). Methods: The methodologies for carbon footprint calculations are still evolving and it is emerging as an important tool for greenhouse gas management. The purpose of this paper was to determine the CF of the Malawi University of Science and Technology (MUST) campus and identify the stressors. The greenhouse gasses (GHG) protocol separates emissions into three scopes which include scope 1 of direct emissions, scope 2 which is indirect emissions, and scope 3 of other indirect emissions. Findings: The estimation of CF from transportation measured 930670.2 kgCO2e, and from electricity measured 2824243.2 kgCO2e while from the use of charcoal fuel measured 30804 kgCO2e. Results showed that emissions generated by gen-sets and transportation produced the highest contribution of 669124.8 kgCO2e and 238991.4 kgCO2e respectively to the MUST campus in the year 2018-2019 as compared to previous years (2015-2017). Conclusion: The study strongly suggested that for the whole 5 years period the use of gen-sets in the campus was the main stressor and this was due to frequent blackouts. Second was transport and as the university grows, the demand for transportation will also increase hence more emissions from transport. Therefore the study recommends that the university should be more considerate of these carbon dioxide sources so as it is trying to meet its needs and demand from these activities, it should also consider reducing the carbon footprint of the campus. Novelty/Originality of this Study: In a pioneering effort for Malawian higher education institutions, this study quantifies the carbon footprint of the Malawi University of Science and Technology campus, paving the way for targeted greenhouse gas management strategies in academic settings.

High contribution of an invasive macroalgae species to beach wrack CO2 emissions

Accumulations of macroalgal wrack are important for adequate functioning of the beach ecosystem. However, the sudden beaching of seaweed masses smothers the coastline and forms decomposing piles on the shore, harming tourism-based economies, but also affecting the beach ecosystem metabolism. The decomposition of sudden pulses of wrack can modify the biogeochemistry of beach sands and increase greenhouse gas (GHG) emissions. The presence of invasive species in the wrack deposits can superimpose harmful effects on the beach functioning. We quantified the wrack biomass of Rugulopteryx okamurae, an invasive species of extreme impact, on five sandy beaches from the Atlantic coast of the Strait of Gibraltar (Spain), and we tested the effects on in situ respiratory CO2 fluxes using an infrared gas analyser. All the beaches showed massive accumulations of Rugulopteryx wrack deposits. However, the biomass changed significantly between beaches, ranging (mean ± SE) from 968.3 ± 287.7 kg m−1 to 9210 ± 1279.4 kg m−1 of wet weight. Wrack supported high respiration rates, with CO2 fluxes averaging (±SE) 19.15 ± 5.5 μmol CO2 m−2 s−1 across beaches, reaching astounding maximum peaks of 291 μmol CO2 m−2 s−1. The within-beach variability was related to the distance of the wrack deposits from the shoreline, as the average metabolic rates tended to increase significantly from the swash to the drift line. Thicker wrack and a more degraded algae stage showed significantly higher CO2 fluxes. We estimated that the annual CO2 flux of R. okamurae in our study area ranged between 0.39 (±0.01) and 23.30 (±11.33) kg C m−2 y−1. We suggest that massive amounts of beach wrack can become a globally significant contributor to GHG emissions that can offset any potential carbon-sink capacity of macroalgal forests. However, the piles of wrack located several meters above the drift line showed non-measurable CO2 efflux. Transferring beach wrack from swash to drier upper-beach areas, a common practice in many coastal regions suffering from massive wrack accumulations, might help reduce GHG emissions while removing the wrack stockpiles from the intertidal. However, this practice is not necessarily suitable for all beaches and can create ecological and conservation problems in the dune system. There is an urgent need to implement practical and sustainable management practices for massive wrack deposits capable of presenting various solutions to achieve a balance between conservation and recreation actions, answering the consequences of a problem that links both, environmental and economic issues.

Life cycle assessment of a high-tech vertical decoupled aquaponic system for sustainable greenhouse production

IntroductionAquaponics provide multiple benefits due to the simultaneous yield of vegetables and fish, however they are characterized by increased greenhouse gas emissions owing to intensive production system. The most appropriate method for quantifying the environmental effects of these systems is Life Cycle Assessment with which the identification of hotspots and the suggestion of improved production plans can be achieved. The purpose of the present study was to evaluate the environmental impact of a pilot high-tech aquaponic system utilized for the simultaneous production of baby lettuce and rocket as well as rainbow trout, in indicators such as Global Warming Potential.Materials and methodsTo achieve this goal, data on inputs and outputs were collected from 12 case studies that were implemented, combining different fertilizer treatments, substrate choices, plant species cultivated and water source provision. Life Cycle Assessment was performed using SimaPro v.9.4.0.2 software.ResultsThe results showcase that the optimal case studies include the cultivation of baby lettuce and rocket in perlite substrate using wastewater from fish and partial use of synthetic fertilizers. Indicatively, Global Warming Potential of these cases was calculated at 21.18 and 40.59 kg CO2-eq/kg of vegetable respectively. The parameter with the greatest impact on most of the environmental indicators was electricity consumption for the operation of the oxygen supply pump for the fish tanks, while greenhouse infrastructure had the greatest impact in Abiotic Depletion and Human Toxicity impact categories. In an alternative production scenario tested where renewable energy sources were used, system impacts were reduced by up to 50% for Global Warming Potential and 86% for Eutrophication impact. The results of this study aspire to constitute a significant milestone in environmental impact assessments of aquaponic production systems and the adoption of more sustainable farming practices.