Climate change policy confronts with many challenges and opportunities. Thus the aim of this study was to analyse the impact of gross domestic product (hereinafter GDP), trade, foreign direct investment (hereinafter FDI), energy efficiency (hereinafter EF) and renewable energy (hereinafter RE) consumption on greenhouse gas (hereinafter GHG) emissions in 1990-2013 and reveal the main challenges and opportunities of climate policy for which policy makers should take the most attention under different stages of economic development. The results showed that the economic growth significantly contributed to the increase of GHG emissions and remains the main challenge in all groups of countries. Analysing the trade impact on pollution, the results revealed that the growth of export (hereinafter EX) significantly reduced GHG emissions only in high income countries. However, the export remains a challenge in low income countries. FDI insignificantly determined the changes in GHG emissions in all groups of countries. Meanwhile, energy efficiency and share of renewable energy consumption are the main opportunities of climate change policy because they reduce the GHG emissions in all groups of countries. Thus, technological processes, the increase of energy efficiency and the shift from carbon to renewable energy sources are the main tools implementing the climate change policy in all countries despite the different stage of economic development.
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http://dx.doi.org/10.1016/j.scitotenv.2018.06.140 | DOI Listing |
Environ Sci Technol
January 2025
Saudi Aramco, Dhahran 31311, Saudi Arabia.
Amid ambitious net-zero goals and growing demands for freight logistics, addressing the climate challenges posed by the heavy-duty truck (HDT) sector is an urgent and pivotal task. This study develops an integrated HDT model by incorporating vehicle dynamic simulation and life cycle analysis to quantify energy consumption, greenhouse gas (GHG) emissions, and total cost of ownership associated with three emerging powertrain technologies in various truck use scenarios in China, including battery electric, fuel cell electric, and hydrogen combustion engine trucks. The results reveal varying levels of economic suitability for these powertrain alternatives depending on required driving ranges and duty cycles: the battery electric for regional-haul applications, the hydrogen fuel cell for longer-haul and low-load driving conditions, and the hydrogen combustion engine to meet high power requirements.
View Article and Find Full Text PDFMethodsX
December 2024
Natural Resources Canada, Canadian Forest Service, 506 Burnside Road West, Victoria, BC, V8Z1M5, Canada.
In light of the recent unprecedented wildfires in Canada and the potential for increasing burned areas in the future, there is a need to explore post-fire salvage harvest and restoration and the implications for greenhouse gas (GHG) emissions. Salvage logging and replanting initiatives offer a potential solution by regrowing forests more quickly while meeting societal demands for wood and bioenergy. This study presents a comprehensive modeling framework to estimate post-fire salvage biomass and net GHG emissions relative to a 'do-nothing' baseline for all of Canada's harvest-eligible forests.
View Article and Find Full Text PDFSurg Endosc
January 2025
Department of Surgery, University of New Mexico Health Sciences Center, MSC10 5610, Albuquerque, NM, USA.
Background: Telemedicine has the potential to increase healthcare access while decreasing the environmental impact associated with providing care. We piloted total perioperative telemedicine (TPT) visits for evaluating patients with symptomatic cholelithiasis. We aimed to evaluate the feasibility and environmental impact of TPT by comparing the perioperative and environmental outcomes of patients participating in TPT to those undergoing traditional in-person preoperative evaluations.
View Article and Find Full Text PDFRev Sci Instrum
January 2025
Department of Mechatronics and Mechanical Systems Engineering, University of São Paulo, São Paulo, SP 05508-030, Brazil.
Labyrinth seals (LSs) in turbomachinery are used to minimize leaks. This study presents an experimental setup designed to test and validate LS designs. The test bench (TB) described in this paper can evaluate different LS designs obtained through various methods to find better solutions to mitigate greenhouse gas (GHG) emissions.
View Article and Find Full Text PDFWater Sci Technol
January 2025
Department of Production Engineering and Mechanical Design, Faculty of Engineering, Tanta University 31527, Egypt; Faculty of Engineering, Pharos University in Alexandria 21648, Alexandria, Egypt.
This review examines the potential for utilizing nuclear power plant (NPP) waste heat in hybrid desalination systems, focusing on Reverse Osmosis-Low-Temperature Evaporation (RO-LTE) driven by renewable energy sources and atomic waste heat. By employing a SOAR (Strengths, Opportunities, Aspirations, Results) analysis, the study evaluates the integration of NPP waste heat into various desalination technologies, emphasizing the environmental benefits and energy efficiency improvements. Fundamental aspirations include advancements in material science and heat exchanger designs, which enhance heat transfer and evaporation processes.
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