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Topic Review
Applications of Polysaccharide Stalks in Didymosphenia geminata Diatom
Didymosphenia geminata is a species of freshwater diatom that is known as invasive and is propagating quickly around the world. The polysaccharide-based stalks of D. geminata enable versatile potential applications and use as a biopolymer, in drug delivery and wound healing, and as biocompatible scaffolding in cell adhesion and proliferation. Furthermore, the polysaccharide nature of stalks and their metal-adsorption capacity allow them to have excellent wastewater remediation potential.
  • 1.2K
  • 29 Mar 2022
Topic Review
Low-CO2 Emission, Dual-Fuel RCCI Engine
Combustion of fuels in internal combustion engines is based on the use of one type of fuel which is ignited either by forced spark ignition (SI) or by compression ignition (CI). The highest efficiency is currently achievable thanks to the ignition of a homogeneous air–fuel mixture in homogeneous charge compression ignition (HCCI) engines, where the ignition of all the fuel in the combustion chamber occurs simultaneously. This combustion takes place at a lower temperature than in a classic diesel engine, which leads to lower heat losses and the formation of less NOX, which translates into higher thermal efficiency for engines with this type of ignition.
  • 1.2K
  • 24 Jan 2022
Topic Review
Economic Growth and CO2
This entry explored the effect of energy consumption and economic growth on CO2 emissions. The relationship between energy consumption, economic growth and CO2 emissions was assessed using regression analysis (the pooled OLS regression and fixed effects methods), Granger causality and panel cointegration tests. Data from 70 countries between 1994–2013 were analysed. The result of the Granger causality tests revealed that the study variables (population, capital stock and economic growth) have a bi-directional causal relationship with CO2 emissions, while energy consumption has a uni-directional relationship. Likewise, the outcome of the cointegration tests established that a long-run relationship exists among the study variables (energy consumption and economic growth) with CO2 emissions. However, the pooled OLS and fixed methods both showed that energy consumption and economic growth have a significant positive impact on CO2 emissions. Hence, this study supports the need for a global transition to a low carbon economy primarily through climate finance, which refers to local, national, or transnational financing, that may be drawn from public, private and alternative sources of financing. This will help foster large-scale investments in clean energy, that are required to significantly reduce CO2 emissions.
  • 1.2K
  • 26 Oct 2020
Topic Review
Sunscreen-Derived Inorganic Ultraviolet Filters in Aquatic Environments
The active ultraviolet filters (UVFs) in sunscreens can be organic or inorganic and can reflect and scatter UVR, which protects human skin from direct sunlight radiation. However, sunscreen-derived inorganic UVFs are considered to be emerging contaminants; in particular, nZnO and nTiO2 UVFs have been shown to undergo absorption and bioaccumulation, release metal ions, and generate reactive oxygen species, which cause negative effects on aquatic organisms.
  • 1.2K
  • 07 Mar 2022
Topic Review
Lignocellulosic Biomass as a Renewable Source
Lignocellulosic biomass is the primary structural component of plant matter and is mostly inedible, generally referring to organic materials such as wood, grass, and agricultural crop residues. Biomass is a plentiful and carbon-neutral renewable energy source that may be used to create platform chemicals and fuels, especially considering that up to 75% of initial energy can be converted into biofuels.
  • 1.2K
  • 13 Oct 2022
Topic Review
Integrating Environment with Health
With the increasing challenge of addressing environmental health issues, various approaches have been proposed to reduce environmental problems. For Muslims all over the world, the Qur’an, Hadith, and Sunnah are recognised as the authoritative messages for spiritual and behavioural guidance on how humans can react to protect the environment and health.
  • 1.2K
  • 17 Aug 2023
Topic Review
Urban Soils and Road Dust
Urban soils might be defined as soils within the administrative boundaries of municipalities or settlings, respective a territory of settlement and natural production, including rests of soils in young cities.
  • 1.2K
  • 16 May 2021
Topic Review
Parthenogenesis in Fulgoromorpha and Cicadomorpha
Insects are renowned for their remarkable diversity of reproductive modes. Among these, the largest non-holometabolous order, Hemiptera, stands out with one of the most diversified arrays of parthenogenesis modes observed among insects. 
  • 1.2K
  • 27 Oct 2023
Topic Review
Rangeland Biodiversity and Climate Variability
Rangeland biodiversity related closely with climate variability. Rainfall plays an important role in arid rangeland restoration. Under favorable conditions, one-year grazing exclusion considerably enhanced species richness and evenness diversity compared to longer resting durations under dry to average rainfall conditions. The decision to how long livestock grazing exclusion would last should not be decided upfront as it depends on the climatic and the site-specific conditions.
  • 1.2K
  • 27 Jun 2021
Topic Review
Freight Transport Decarbonization
Freight transport decarbonization is currently an urgent challenge. Decarbonization strategies have a specific time to take effect, and it is essential to consider their time dependence. The system dynamics approach is well suited to represent feedback, lagged responses, and the time dependence of decarbonization strategies. 
  • 1.2K
  • 31 Mar 2022
Topic Review
Landscape Elements in the Lhasa Residential Area
Landscape elements have a direct impact on the thermal environment and have become an important means to improve the quality of life of residents. However, the selection and configuration of landscape elements have different effects on human thermal comfort under different climatic conditions. Lhasa is located in the middle of the Qinghai Tibet Plateau, with an altitude of 3650 meters. Due to the particularity of its geographical location, the climate conditions in Lhasa are significantly different from those in Beijing, Xi'an, Lanzhou and other cities in the same climate area. At the same time, the local residents are mainly Tibetans. Religious culture and climate conditions have led to significant differences in the living habits and the needs for thermal comfort of local residents compared with those of residents in other cities. Therefore, researcher focuses on special climatic conditions, taking the typical residential areas in Lhasa, Tibet as the research object, in order to better understand the impact of residential landscape elements on the outdoor thermal environment and thermal comfort in the plateau cold climate area.
  • 1.2K
  • 17 Jun 2022
Topic Review
Environmental Sorption of Additives from Microplastics
Although the impacts of plastic pollution have long been recognized, the presence, pervasiveness, and ecotoxicological consequences of microplastic—i.e., plastic particles < 5 mm—contamination have only been explored over the last decade. Far less focus has been attributed to the role of these materials and, particularly, microplastics, as vectors for a multitude of chemicals, including those (un)intentionally added to plastic products, but also organic pollutants already present in the environment. 
  • 1.2K
  • 17 Jan 2024
Topic Review
Climate Change Education
Climate Change Education (CCE) is one of the initiatives taken to deliver the facts about the current climate status of the world and the proper mitigation actions that need to be done to the youth, as they will be the ones who will have to face and deal with the consequences of climate change.; thus, CCE has now become a critical factor in strengthening the climate change awareness of young people. CCE is one of the sub-areas of Education for Sustainable Development (ESD) where the focus is on the complexity and challenges involved in understanding and responding to the impact of climate change; furthermore, the implementation of CCE in ESD should include a holistic and integrated view of all dimensions, covering the ecological, economic, and social aspects of the consequences of climate change.
  • 1.2K
  • 24 May 2022
Topic Review
Degradation Processes for Microplastics
Microplastics (MPs) have been shown to be more hazardous than large plastics. Many studies have confirmed the hazards of MPs to organisms and summarized various MP degradation techniques, but there is a lack of discussion on the prospects of the application of these degradation techniques and their degradation efficiency.
  • 1.2K
  • 09 Nov 2023
Topic Review
Garment Quality in a CE Context
The fashion industry is one of the most polluting industrial sectors in the world and its environmental impacts are huge. Garments are produced effectively at a low price, are of low quality, and are used for a very short time before ending up in increasing textile waste streams. One critical aspect in this context is the lifetime of a garment. Short garment lifetimes are the results of low quality and consumer dissatisfaction, or consumers’ constant search for newness, resulting in the early disposal of garments. 
  • 1.2K
  • 17 Jan 2022
Topic Review
Phytoremediation for Arsenic-Contaminated Gold Mine Waste
Arsenic (As)-contaminated gold mine waste is a global problem and poses a significant risk to the ecosystem and community (e.g., carcinogenic, toxicity). Research is investigating environmentally sustainable techniques to remediate As-rich mine waste. Biological techniques involving plants (phytoremediation) and soil amendments have been studied to bioaccumulate As from soil (phytoextraction) or stabilise As in the rhizosphere (phytostabilisation). 
  • 1.2K
  • 12 Oct 2023
Topic Review
Reuse of Water Contaminated by Microplastics
Water treatment generally does not specifically address the removal of microplastics (MPs). Nevertheless, treatment plants process water effectively, and the number of synthetic microparticles in effluents is usually very low. Still, discharge volumes from water-treatment plants are often elevated (reaching around 10^8 L/day), leading to the daily discharge of a substantial number of MPs and microfibers. Furthermore, MPs accumulate in the primary and secondary sludge, which in the end results in another environmental problem as they are currently used to amend soils, both for cultivation and forestry, leading to their dispersion. Something similar occurs with the treatment of water intended for human consumption, which has a much lower but still significant number of MPs. 
  • 1.2K
  • 18 Apr 2022
Topic Review
Climate Change and Indigenous Peoples
Climate change disproportionately impacts indigenous people around the world, especially in terms of their health, environments, and communities. Indigenous people found in Africa, the Arctic, Asia, Australia, the Caribbean, Latin America, North America and the Pacific have strategies and traditional knowledge to adapt to climate change. These knowledge systems can be beneficial for their own adaptation to climate change as well as applicable to non-indigenous people.   The majority of the world’s biological, ecological, and cultural diversity is located within Indigenous territories. There are over 370 million indigenous peoples found across 90+ countries. Approximately 22% of the planet's land is comprised of indigenous territories, varying slightly depending on how indigeneity and land usage is determined. Indigenous people have the important role of the main knowledge keepers within their communities, including knowledge relating to the maintenance of social-ecological systems. The United Nations Declaration on the Rights of Indigenous People recognizes that Indigenous people have specific knowledge, traditional practices, and cultural customs that can contribute to the proper and sustainable management of ecological resources. Indigenous Peoples have a myriad of experiences with the effects of climate change because of the varying geographical areas they inhabit across the globe and because of the differences in cultures and livelihoods. Indigenous Peoples have a wide variety of experiences that Western science is beginning to include in its research of climate change and its potential solutions. The concepts of ancestral knowledge and traditional practices are increasingly respected and considered in Western scientific research.
  • 1.2K
  • 09 Nov 2022
Topic Review
Sampling and Analysis of Airborne Pesticides
The escalating utilization of pesticides has led to pronounced environmental contamination, posing a significant threat to agroecosystems. The extensive and persistent global application of these chemicals has been linked to a spectrum of acute and chronic human health concerns.
  • 1.2K
  • 24 Nov 2023
Topic Review
Carbon Source and Sink in Arable Land Ecosystems
As a subsystem of terrestrial ecosystems, the arable land ecosystem is most closely related to human beings because it not only provides food, fiber, fuel and other products, but also supports and maintains the natural environment on which human beings depend for survival. An arable land ecosystem can act as either a carbon source or a sink.
  • 1.2K
  • 06 May 2022
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