The energy consumption in Pakistan, both renewable and nonrenewable, is examined herein as an important factor in carbon emissions. Employing a nonlinear ARDL (auto-regressive distributed lag), the research examines data from 1980 to 2021. The results show that the use of renewable energy has a negligible effect when it comes to the nation's overall carbon emissions. This is mainly because the key pollutants in Pakistan's energy sector come from nonrenewable sources, such as coal and natural gas. However, the report observes that the carbon emissions within the nonrenewable energy sector are directly related to economic growth. A further theorem of the nonlinear analysis has brought the limited role of renewable energy in resolving environmental problems into sharper focus, perhaps due to its lower proportion of Pakistan's total energy mix. According to the study, improving the proportion of renewable energy is the only way to combat environmental problems.
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http://dx.doi.org/10.1016/j.heliyon.2024.e33472 | DOI Listing |
Sci Rep
January 2025
Department of Biochemistry, College of Science, King Saud University, P.O.Box 2455, Riyadh, 11451, Saudi Arabia.
Nano-biochar considers a versatile and valuable sorbent to enhance plant productivity by improving soil environment and emerged as a novel solution for environmental remediation and sustainable agriculture in modern era. In this study, roles of foliar applied nanobiochar colloidal solution (NBS) on salt stressed tomato plants were investigated. For this purpose, NBS was applied (0%, 1% 3% and 5%) on two groups of plants (control 0 mM and salt stress 60 mM).
View Article and Find Full Text PDFJ Environ Manage
January 2025
Department of Finance, Feng Chia University, Taichung, Taiwan. Electronic address:
The investigation of the unintended impact of pairing assistance policies on carbon emissions in administrative boundary regions is critical for achieving the "dual carbon" goals. This paper utilizes a sample of cities from the Pearl River Delta and the eastern and western regions of Guangdong, China, spanning from 2006 to 2020. A quasi-natural experiment based on the co-construction of industrial parks is employed to examine its impact on carbon emissions in boundary regions.
View Article and Find Full Text PDFJ Environ Manage
January 2025
School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, PR China. Electronic address:
Thiocyanate (SCN) is a highly toxic reducing inorganic compound commonly found in various nitrogen-rich wastewater and is also a promising electron donor for mixotrophic denitrification. However, its extent of involvement in mixotrophic denitrification under conditions of carbon limitation or excess remains unclear. In this study, five reactors were constructed to investigate the participation and microbial mechanisms of SCN in mixotrophic denitrification under high C/N and low C/N conditions.
View Article and Find Full Text PDFJ Environ Manage
January 2025
Institute of Blue and Green Development, Shandong University, Weihai, 264209, China; Faculty of Finance, City University of Macau, Macao, China. Electronic address:
Owing to critical policy significance, a growing body of literature has been predominantly concentrating on the social welfare benefits brought by green finance (GF) initiatives. However, there is a paucity of research that quantifies the economic costs of GF initiatives on carbon reduction, raising the increasing concerns about the irreconcilable climate-economy trade-offs. To end this, the present study systematically investigates the influence of GF initiatives on the carbon-related marginal abatement cost (MAC) using two competing hypotheses: regulatory versus technical effects.
View Article and Find Full Text PDFChemosphere
January 2025
Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), 26504, Patras, Greece. Electronic address:
The goal of the present work is to quantify the performance of ozonation as a method for the in situ remediation of soils polluted at varying degree with different types of hydrocarbons, and assess its applicability, in terms of remediation efficiency, cost factors, and environmental impacts. Ozonation tests are conducted on dry soil beds, for three specific cases: sandy soil contaminated with low, moderate and high concentration of a non-aqueous phase liquid (NAPL) consisting of equal concentrations of n-decane, n-dodecane, and n-hexadecane; sandy soil polluted with diesel fuel; oil-drilling cuttings (ODC). The transient changes of the concentration of the total organic carbon (TOC), total petroleum hydrocarbons (TPH), polycyclic aromatic hydrocarbons (PAHs), and soluble chemical oxygen demand (SCOD) in soil and carbon dioxide (CO), carbon monoxide (CO), volatile organic compounds (VOCs), and ozone (O) in exhaust gases are recorded.
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