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Topic Review
Green Wave
The concept of a Green Wave, i.e., the coordinated switching of traffic lights in order to favor a single direction and reduce congestion, is often discussed as a simple mechanism to avoid breaking and accelerating, thereby reducing fuel consumption. On the other hand, making car use more attractive might also increase emissions.
  • 1.7K
  • 29 Jul 2021
Topic Review
Degree of Ambition and Renewable Energy in Shipping
The early strategy outlines various degrees of desire for the international shipping industry, stressing that technical advancement and the international introduction of alternative fuels and/or renewable energies for international shipping will be crucial to achieving the overall aim. Renewable energy can be implemented in shipping in one of two ways: (1) as retrofits for current fleets or (2) as part of new vessel designs. In terms of new ship concepts, most renewable energy technology will deliver electricity for auxiliary and additional uses, regardless of ship size.
  • 1.7K
  • 14 Nov 2022
Topic Review
Strengthening Collaborative Food Waste Prevention in Peru
Inefficient management and handling of organic waste generated by the food service sector is a big global challenge. In addition to the negative environmental impacts of food waste, the effect of the amount of food that is wasted when it is not handled properly is even more alarming. 
  • 1.7K
  • 28 Jan 2022
Topic Review
Cadmium Recovery from Spent Ni-Cd Batteries
The significant increase in the demand for efficient electric energy storage during the last decade has promoted an increase in the production and use of Cd-containing batteries. On the one hand, the amount of toxic Cd-containing used batteries is growing, while on the other hand, Cd is on a list of critical raw materials (for Europe). Both of these factors call for the development of effective technology for Cd recovery from spent batteries. Alkaline nickel-cadmium (Ni-Cd) batteries are widely used as autonomous sources of industrial and household current (power banks) due to a successful combination of feasibility studies and achieved sustainable electrical characteristics. In recent decades, the market of secondary current sources for portable equipment has undergone significant changes, which leads to an intensive replacement of Ni-Cd batteries with lithium-ion (LIB) and nickel-metal-hydride.
  • 1.7K
  • 07 Feb 2022
Topic Review
Microbial and Enzymatic Degradation of Plastics
The indiscriminate production and irresponsible management of plastics have led to the accumulation of plastic waste, emerging as a pressing environmental concern. To establish a clean and sustainable plastic economy, plastic recycling becomes imperative to mitigate resource depletion and replace non-eco-friendly processes, such as incineration. Although chemical and mechanical recycling technologies exist, the prevalence of composite plastics in product manufacturing complicates recycling efforts. Biodegradation of plastics using enzymes and microorganisms has been reported, opening a new possibility for biotechnological plastic degradation and bio-upcycling.
  • 1.7K
  • 27 Oct 2023
Topic Review
Energy Transition to Achieve Carbon Neutrality
Successful energy transitions, also referred to as leapfrog development, present enormous prospects for EU nations to become carbon neutral by shifting from fossil fuels to renewable energy sources. Along with climate change, EU countries must address energy security and dependency issues, exacerbated by factors such as the COVID-19 pandemic, rising energy costs, conflicts between Russia and Ukraine, and political instability. Central European countries may transition to a clean energy economy and become carbon neutral on economic and strategic levels by locating alternative clean energy supply sources, reducing energy use, and producing renewable energy. 
  • 1.7K
  • 10 Nov 2022
Topic Review
Deep Eutectic Solvents as Promising Green Solvents
Deep eutectic solvents (DESs) have recently attracted attention as a promising green alternative to conventional hazardous solvents by virtue of their simple preparation, low cost, and biodegradability. Even though the application of DESs in analytical chemistry is still in its early stages, the number of publications on this topic is growing. Analytical procedures applying dispersive liquid–liquid microextraction based on the solidification of floating organic droplets (DLLME-SFOD) are among the more appealing approaches where DESs have been found to be applicable.
  • 1.7K
  • 20 Jan 2022
Topic Review
Low-carbon tourism supply chain
Low-carbon tourism is a kind of way to reduce the "carbon" tourism, that is, in the tourism activities, tourists try to reduce the carbon dioxide emissions. That is, green travel based on low energy consumption and low pollution, advocating the minimum reduction of carbon footprint and carbon dioxide emissions during travel, is also a deep-seated performance of environmental tourism. This paper integrates a low-carbon tourism supply chain consisting of a low-carbon tourist attraction (LTA) providing a low-carbon service and an online travel agency (OTA) responsible for big data marketing. Consumers may also encounter sudden crisis events that occur in the tourist attraction during their visit, and the occurrence of crisis events can damage the low-carbon goodwill of the tourist attraction to the detriment of the sustainable development of the supply chain. Therefore, this paper aims to investigate how tourism firms can develop dynamic strategies in the pre-crisis environment if they envision the occurrence of a crisis event and how crisis events affect interfirm cooperation. Our findings provide important managerial insights for enterprises in the tourism supply chain and suggest that they need to not only become aware of the tourist attraction crisis events, but also, more importantly, they need to adjust their appropriate input strategies based on the degree of anticipation of the crisis. 
  • 1.7K
  • 13 Aug 2021
Topic Review
Waste-to-Energy Recovery from Municipal Solid Waste
Inadequate disposal of Municipal Solid Waste (MSW) is one of the greatest environmental issues confronted nowadays. One of the techniques used for its final disposal is incineration, otherwise known as mass burning.
  • 1.7K
  • 06 Apr 2023
Topic Review
Public Acceptance of Autonomous Vehicles in Public Transportation
The field of autonomous vehicles (AVs) is advancing rapidly, with prototype development and on-road testing of AVs frequently occurring, suggesting that AV deployment for public transportation may soon become a reality.
  • 1.7K
  • 11 May 2023
Topic Review
Circular Carbon Economy (CCE)
The circular carbon economy (CCE) system achieves a balance by closing the carbon circle, capturing CO2emissions, and using them economically after their initial linear use. This approach differs in that it does not focus solely on reducing or avoiding the increase in the amounts of carbon. The steady increase in carbon dioxide levels requires increased effort to mitigate their impact.
  • 1.6K
  • 10 Nov 2021
Topic Review
Methods for Intensifying Biogas Production from Waste
The topic of intensification of bioprocesses is widely discussed in agricultural countries and countries with a large amount of organic waste. Therefore, the study of bioprocess intensification methods can help increase qualitative and quantitative indicators of biogas yield by using a combination of intensification methods.
  • 1.6K
  • 02 Nov 2022
Topic Review
Green Roofs in Urban Areas
The presence of green roofs in urban areas provides various ecosystem services that help mitigate climate change. They play an essential role in sustainable drainage systems, contribute to air quality and carbon sequestration, mitigate urban heat island, support biodiversity, and create green spaces supporting public well-being. Bus stops provide good opportunities for installing green roofs. 
  • 1.6K
  • 06 Nov 2023
Topic Review
Fermented Plant Biomass in Pigs Feeding
The demand for animal-based food production is increasing mainly due to the rapid growth of the human population. The effective production of high-quality agricultural products promotes and protects the natural environment, human health, and animal welfare. Sustainable processing involves minimizing the waste stream. One way to use agricultural plant-based waste, which is often rich in bioactive substances, is to produce fermented feed in accordance with the principles of sustainable development. Corn, yellow lupins, and narrow-leaved lupins are rich in nutrients, and are suitable for fermentation and use in pig feed. They are also safe for weaned piglets. Used as a feed additive, fermented plant biomass has a positive effect on the health of pigs, increasing their weight and improving the taste and appearance of the meat. The fermentation of plant biomass reduces antinutritional substances that are abundant in feed components.
  • 1.6K
  • 16 Nov 2022
Topic Review
Serious Energy Games
Serious energy games (SEGs) as interactive experiences that engage users to various energy applications are gaining prominence as an innovative approach, particularly in the realm of energy usage, distributed generation, and interaction with energy markets.
  • 1.6K
  • 10 Oct 2023
Topic Review
Market Premium for Green Buildings
In real estate markets, there is growing relevance of Green Buildings, especially in cities where the greater part of residential buildings is built before the first regulations on energy performance. Through policies oriented towards sustainable practices, a twofold goal can be achieved: energy consumption mitigation respecting the historical value for existing buildings, direct economic impacts on real estate values.
  • 1.6K
  • 25 May 2022
Topic Review
Net Zero Energy Communities
Net Zero Energy Community (NZC) is an emerging concept with multiple variations in the scope and calculation methods, which complicates uniformly quantifying its targets.
  • 1.6K
  • 12 Nov 2021
Topic Review
Nanoremediation Technologies
Nanoremediation technologies involve the use of reactive NPs for the conversion and detoxification of contaminants. The main mechanisms for remediation by NPs are catalysis and chemical reduction. In addition, adsorption is another removal mechanism facilitated by the NPs since NPs have high surface-area-to-mass ratios and different distribution of active sites, increasing the adsorption ability.
  • 1.6K
  • 20 Aug 2021
Topic Review
Chemical Alternatives for Fixing Carbon Dioxide
Carbon is the most important element of organic matter, forming the major part of its dry weight. Elemental carbon exists in the atmosphere as carbon dioxide (CO2) and is dissolved in water, rocks, and soils as carbonic acid (H2CO3), bicarbonates, and carbonates. In fossil fuels, it exists as carbon rings or chains and in biomolecules such as nucleic acids, carbohydrates, proteins, and lipids. Atmospheric CO2 is the major cause for global warming through the greenhouse effect; hence, carbon dioxide emissions must be strictly regulated to minimize the greenhouse effect.
  • 1.6K
  • 13 Apr 2022
Topic Review
Zero Solid Waste in the Sedimentary Phosphate Industry
The phosphate industry produces huge volumes of waste (hundred million tons per year). These wastes are generally surface landfilled, leading to significant environmental impacts and a large footprint. All the waste streams generated during the life cycle of phosphoric acid production going from the extraction of phosphate rock to its enrichment and transformation are considered. Great circularity opportunities have been identified and they aim (i) to recover the residual phosphorus and other critical minerals and metals, and (ii) to consider phosphate wastes as alternative resources in the civil engineering and building sectors. The purpose is to shift from linear thinking to circular thinking where synergy between different mining and other industries is highly encouraged. 
  • 1.6K
  • 16 Nov 2021
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