This study examines the impact of globalisation (measured in terms of foreign direct investment and trade openness), and renewable energy on carbon emissions using 46 sub-Saharan African countries for the period 1980-2015. Using fixed and random effect estimation techniques, the study found that renewable energy and foreign direct investment contribute to the reduction of carbon emissions while trade openness deteriorates the environment. It was also found that population growth and financial development contribute to the increase in carbon emissions. The study found evidence for Environmental Kuznets curve hypothesis. Our results revealed that institutional quality measured using regulation has a less pronounced effect for reducing carbon emissions. However, regulation moderates economic growth and foreign direct investment to reduce carbon emissions. These results are robust to alternative estimators such as the instrumental variable generalised method of moment and dynamic fixed effect estimators. The study further demonstrated that there are variations in the results among the regions within sub-Saharan Africa. The policy implications of the paper are discussed.
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http://dx.doi.org/10.1016/j.scitotenv.2019.04.353 | DOI Listing |
Adv Biotechnol (Singap)
October 2024
Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, and Center for Algae Innovation & Engineering Research, School of Resources and Environment, Nanchang University, Nanchang, 330031, China.
Microalgae offer a promising alternative for sustainable nutritional supplements and functional food ingredients and hold potential to meet the growing demand for nutritious and eco-friendly food alternatives. With the escalating impacts of global climate change and increasing human activities, microalgal production must be enhanced by reducing freshwater and land use and minimizing carbon emissions. The advent of 3D printing offers novel opportunities for optimizing microalgae production, though it faces challenges such as high production costs and scalability concerns.
View Article and Find Full Text PDFWater Sci Technol
January 2025
China Construction Fifth Engineering Division Co., Ltd, Changsha, Hunan 410004, China.
Road runoff underwent treatment using a filter filled with sludge from drinking water treatment plants to assess its capacity for removing dissolved organic matter (DOM). This evaluation utilized resin fractionation, gel permeation chromatography, three-dimensional excitation-emission matrix fluorescence spectroscopy, and UV-Visible spectroscopy. The filter demonstrated enhanced efficiency in removing dissolved organic carbon, achieving removal rates between 70 and 80%.
View Article and Find Full Text PDFChem Sci
January 2025
Instituto de Carboquímica (ICB-CSIC) C/Miguel Luesma Castán 4 E-50018 Zaragoza Spain
Fluorescent nitrogen-doped carbon dots (N-GQDs) with long-wavelength emission properties are of increased interest for technological applications. They are widely synthesized through the solvothermal treatment of graphene oxide (GO) using ,-dimethylformamide (DMF) as a cleaving and doping agent. However, this process simultaneously generates undesired interfering blue-emissive by-products.
View Article and Find Full Text PDFHeliyon
January 2025
Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka, 1000, Bangladesh.
This study investigated the ramifications of black carbon (BC) emissions on human health during the winter season of December 2019 to February 2020 in Dhaka, Bangladesh. BC, arising from incomplete combustion of fossil and biofuels, underwent meticulous measurement of densities, concentrations, and emissions at two pivotal sites. Employing low-volume air samplers with Quartz filters and subsequent analysis with an Aethalometer (Soot scanner, OT21, USA), the study unveiled monthly average BC densities of 1.
View Article and Find Full Text PDFClin Radiol
January 2025
Department of Nuclear Medicine, China-Japan Friendship Hospital, Beijing, 100029, China. Electronic address:
Aim: To evaluate the correlation between semi-quantitative analyses and visual scores of pulmonary perfusion Single Photon Emission Computed Tomography (SPECT)/ Computed Tomography (CT) imaging and pulmonary function test parameters (PFTs) in patients with interstitial lung diseases (ILDs).
Materials And Methods: This retrospective study included 35 patients with ILDs from China-Japan Friendship Hospital between January 2020 and December 2022. All patients underwent pulmonary perfusion SPECT/CT imaging and a pulmonary function test.
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