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Topic Review
Green Jobs
Green jobs, described as those jobs generated around sustainability and European Green Deal (EGD), have become “the emblem of this sustainable economy” according to the United Nations Environment Programme (UNEP) report. Studies on green economy and green tourism have increased substantially in the last decade, but it is also true that there is a lack of studies that determine what green job opportunities exist in the Spanish hotel sector under the umbrella of Sustainable Development Goals (SDGs) and sustainability policies.
  • 1.7K
  • 21 Oct 2021
Topic Review
Urban Futures Lab
Fonded in 2018 by Dr. Steffen Lehmann, the interdisciplinary  Urban Futures Lab is a collaboration between three units at the University of Nevada at Las Vegas: UNLV School of ArchitectureUNLV Howard R. Hughes College of EngineeringUNLV Greenspun College of Urban AffairsThe Urban Futures Lab (UFLab) has partners from industry and government contributing to the following research program.
  • 1.7K
  • 12 Apr 2021
Topic Review
Biofuel Production Pathways by Microalga
Using microalgae to treat wastewater as well as simultaneously produce biofuels is one of the approaches for a sustainable future. The manufacture of biofuels from microalgae is one of the next-generation biofuel solutions that has recently received a lot of interest, as it can remove nutrients from the wastewater whilst capturing carbon dioxide from the atmosphere. The resulting biomass are employed to generate biofuels, which can run fuel cell vehicles of zero emission, power combustion engines and power plants. By cultivating microalgae in wastewater, eutrophication can be prevented, thereby enhancing the quality of the effluent. Thus, by combining wastewater treatment and biofuel production, the cost of the biofuels, as well as the environmental hazards, can be minimized, as there is a supply of free and already available nutrients and water.
  • 1.7K
  • 27 Aug 2021
Topic Review
American Farm Bureau Federation
The American Farm Bureau Federation (AFBF), more commonly known as Farm Bureau Insurance and Farm Bureau Incorporated (FB), is a United States -based insurance company and lobbying group that represents large agricultural corporations. Headquartered in Washington, D.C., the Farm Bureau has affiliates in all 50 states and Puerto Rico.
  • 1.7K
  • 01 Nov 2022
Topic Review
Removal of Per-and Polyfluoroalkyl Substances by Novel Membranes
Per- and Polyfluoroalkyl Substances (PFAS) are anthropogenic chemicals consisting of thousands of individual species. PFAS consists of a fully or partly fluorinated carbon–fluorine bond, which is hard to break and requires a high amount of energy (536 kJ/mole). Resulting from their unique hydrophobic/oleophobic nature and their chemical and mechanical stability, they are highly resistant to thermal, chemical, and biological degradation. To date, membrane technology is one of the effective process, which can remove PFAS from wastewater. Moreover, there are very few novel membrane approaches have been reported effective in removing and destroying PFAS.
  • 1.7K
  • 08 Jul 2022
Topic Review
Merchants of Doubt
Merchants of Doubt: How a Handful of Scientists Obscured the Truth on Issues from Tobacco Smoke to Global Warming is a 2010 non-fiction book by American historians of science Naomi Oreskes and Erik M. Conway. It identifies parallels between the global warming controversy and earlier controversies over tobacco smoking, acid rain, DDT, and the hole in the ozone layer. Oreskes and Conway write that in each case "keeping the controversy alive" by spreading doubt and confusion after a scientific consensus had been reached was the basic strategy of those opposing action. In particular, they show that Fred Seitz, Fred Singer, and a few other contrarian scientists joined forces with conservative think tanks and private corporations to challenge the scientific consensus on many contemporary issues. Some of the book's subjects have been critical of the book, but most reviewers received it favorably. One reviewer said that Merchants of Doubt is exhaustively researched and documented, and may be one of the most important books of 2010. Another reviewer saw the book as his choice for best science book of the year. It was made into a film, Merchants of Doubt, directed by Robert Kenner, released in 2014.
  • 1.7K
  • 19 Oct 2022
Topic Review
Phenol Removals
Phenol acts as a pollutant even at very low concentrations in water. It is classified as one of the main priority pollutants that need to be treated before being discharged into the environment. If phenolic-based compounds are discharged into the environment without any treatments, they pose serious health risks to humans, animals, and aquatic systems.
  • 1.7K
  • 27 Aug 2021
Topic Review
Pyrethrins and Pyrethroids
Pyrethrins and pyrethroids are a dominating group of insecticidal compounds that have been used for a long time and are still being used today, due to their potency and their variability. From natural pyrethrins, which can be utilized especially for their biodegradable properties, to the synthetic derivatives, pyrethroids, which may be used for their potency, this class of organic insecticides displays a lot of variability. It must be acknowledged that without plants, and plant metabolites, a great area of the insecticide compound class would be missing.
  • 1.7K
  • 15 Jan 2024
Topic Review
Membrane-Based Technologies for Post-Combustion CO2 Capture
Carbon dioxide (CO2), which results from fossil fuel combustion and industrial processes, accounts for a substantial part of the total anthropogenic greenhouse gases (GHGs). As a result, several carbon capture, utilization and storage (CCUS) technologies have been developed during the last decade. Chemical absorption, adsorption, cryogenic separation and membrane separation are the most widely used post-combustion CO2 capture technologies. 
  • 1.7K
  • 29 Dec 2023
Topic Review
Climate Change and Infectious Diseases
Global climate change has resulted a wide range of impacts on the spread of infectious diseases is a prominent instance due to ‘climate-sensitive’ characterization.[clarification needed] Like other climate change impacts on human health, climate change both exacerbates existing inequalities and challenges in managing infectious disease while increasing the likilihood of certain kinds of new infectious disease challenges. Documented infectious disease impacts of climate change, include increased malaria and dengue, which are expected to worsen as the global climate changes directly result in extreme weather conditions and higher temperatures. Not only will it propagate their spread, but climate change will probably bring forth new infectious diseases, and change the epidemiology of many existing diseases. Despite humanity's recent success at managing diseases such as SARS, coronavirus, and Ebola – historical data is by no means a guarantee of the future success of confrontation given that each new disease brings its own set of challenges as seen in with the ongoing pandemic regarding COVID-19. There is no direct evidence that COVID-19 is worsened or is caused by climate change.
  • 1.7K
  • 14 Oct 2022
Topic Review
Wastewater Based Epidemiology
Wastewater-Based epidemiology (WBE) is spreading of any disease or disorder caused by the chemicals or pathogens that come from waste materials such as urine, fecal materials, medical waste  or any solid or liquid waste product. The extraction, detection, analysis, and interpretation of chemical/biological compounds (biomarkers) excreted in the sewage system can eventually contribute to WBE. So wastewater analysis could be equivalent to community-based urine and fecal analysis that can subsequently give a reflection  of community health. Under pandemic situation with time limitations and restrict access to massive diagnostic, an alternative approach as a complementary tool to investigate virus circulation in the community is essential. In the situation of limited and time-consuming diagnostic tests, monitoring sewage systems could better estimate the spread of the virus and determine whether there are potential cases because wastewater surveillance can also account for those who contract mild or asymptomatic state.
  • 1.6K
  • 06 Sep 2021
Topic Review
Nature Time and Pro-environmental Attitudes/Behaviors
Urbanization, screen dependency, and the changing nature of childhood and parenting have led to increased time indoors, creating physical and emotional distancing from nature and time spent in natural environments. Substantial evidence from observational and intervention studies indicates that overall time spent in nature leads to increased perceived value for connectedness to nature and, subsequently, greater pro-environmental attitudes and behaviors (PEAB).
  • 1.6K
  • 30 Sep 2021
Topic Review
Dairy Wastewater Treatment by Membrane Separation Technology
Water pollution caused by population growth and human activities is a critical problem exacerbated by limited freshwater resources and increasing water demands. Various sectors contribute to water pollution, with the dairy industry being a significant contributor due to the high concentrations of harmful contaminants in dairy wastewater. Traditional treatment methods have been employed, but they have limitations in terms of effectiveness, cost, and environmental impact. Membrane separation technology (MST) has emerged as a promising alternative for treating dairy wastewater. Membrane processes offer efficient separation, concentration, and purification of dairy wastewater, with benefits such as reduced process steps, minimal impact on product quality, operational flexibility, and lower energy consumption. However, membrane fouling and concentration polarization present major challenges associated with this technique. Therefore, strategies have been implemented to mitigate these phenomena, including pre-treatment prior to MST, coagulation, and adsorption. 3D printing technology has gained prominence as one of the latest and most notable advancements for addressing these issues.
  • 1.6K
  • 07 Aug 2023
Topic Review
Atmospheric Carbon Cycle
The atmosphere is one of the Earth's major carbon reservoirs and an important component of the global carbon cycle, holding approximately 720 gigatons of carbon. Atmospheric carbon plays an important role in the greenhouse effect. The most important carbon compound in this respect is the gas carbon dioxide (CO2). Although it is a small percentage of the atmosphere (approximately 0.04% on a molar basis), it plays a vital role in retaining heat in the atmosphere and thus in the greenhouse effect. Other gases with effects on the climate containing carbon in the atmosphere are methane and chlorofluorocarbons (the latter is entirely anthropogenic). Emissions by humans in the past 200 years have almost doubled the amount carbon dioxide in the atmosphere.
  • 1.6K
  • 17 Oct 2022
Topic Review
Heavy Metal Contamination Chan Thnal Reservoir
Chan Thnal reservoir, built during the Pol Pot period, is the major water source for the people in Krang Chek commune, Kampong Speu Province, Cambodia. Metal pollution caused by agricultural activities, improper wastewater treatment, and municipal waste disposal poses serious environmental health problems.
  • 1.6K
  • 20 Dec 2021
Topic Review
Climate Across Cretaceous–Paleogene Boundary
The climate across the Cretaceous–Paleogene boundary (K–Pg or formerly the K–T boundary) is very important to geologic time as it marks a catastrophic global extinction event. Numerous theories have been proposed as to why this extinction event happened including an asteroid known as the Chicxulub asteroid, volcanism, or sea level changes. While the mass extinction is well documented, there is much debate about the immediate and long-term climatic and environmental changes caused by the event. The terrestrial climates at this time are poorly known, which limits the understanding of environmentally driven changes in biodiversity that occurred before the Chicxulub crater impact. Oxygen isotopes across the K–T boundary suggest that oceanic temperatures fluctuated in the Late Cretaceous and through the boundary itself. Carbon isotope measurements of benthic foramifinera at the K–T boundary suggest rapid, repeated fluctuations in oceanic productivity in the 3 million years before the final extinction, and that productivity and ocean circulation ended abruptly for at least tens of thousands of years just after the boundary, indicating devastation of terrestrial and marine ecosystems. Some researchers suggest that climate change is the main connection between the impact and the extinction. The impact perturbed the climate system with long-term effects that were much worse than the immediate, direct consequences of the impact.
  • 1.6K
  • 25 Nov 2022
Topic Review
Electrodialysis Bipolar Membrane for Reverse-Osmosis Concentrate Recovery
Electrochemical processes such as electrodialysis (ED) and electrodialysis bipolar membrane (EDBM) can contribute to soft-water production and the evaluation of waste fluxes. EDBM is a new technology that combines the separation function of electrodialysis with water separation at the bipolar membrane interface, which can convert salts into corresponding acids and bases without adding external components. In this system, anions and cations are separated from wastewater separately and combined with H+ and OH− ions via bipolar membranes to form acidic and alkaline solutions.
  • 1.6K
  • 14 Jan 2022
Topic Review
The Market Systems Resilience Index
The Market Systems Resilience Index (MSRI) is an innovative approach to measuring the resilience of a market system. The MSRI has been developed both to guide development practitioners in the process of conducting resilience assessments and to promote the inclusion of all relevant actors within a market system.
  • 1.6K
  • 26 Oct 2021
Topic Review
Late Glacial
The Late Glacial climate warming (c. 13,000–10,000 years ago), or Tardiglacial ("Late Glacial"), is defined primarily by the beginning of the modern warm period, in which temperatures in the Northern Hemisphere rose substantially, causing a process of accelerated deglaciation following the Last Glacial Maximum (c. 25,000–13,000 years ago). At this time, human populations, previously forced into refuge areas as a result of Last Glacial Maximum (LGM) climatic conditions, gradually begin to repopulate the Northern Hemisphere's Eurasian landmass and eventually populate North America via Beringia for the first time. The Late Glacial Interstadial c.14,670 to c.12,890 BP represents the first pronounced warming since the end of the LGM. Evidence for its occurrence stems from two main types of analysis. The first is the use of oxygen isotope stages (OIS) gathered from stratified deep-sea sediment cores. Samples are gathered and measured for change in isotope levels to determine temperature fluctuation for given periods of time. The second is a proxy measurement, the observation of certain reappearing fauna and flora fossils that can survive only in temperate climates, thus indicating warming trends for a given geographic area. Archaeological evidence of settlement and resettlement in certain areas by humans also serve as proxy measurements. Towards the end of OIS 2 in which the Late Glacial Maximum occurs, the deep-sea sediment cores indicate a gradually warming climate, and the reappearance of certain warm-weather flora and fauna remains throughout the Northern Hemisphere correlate with that trend. The Late Glacial was interrupted by a severe decline in temperatures during the Younger Dryas from c.12,890 to c.11,650 BP.
  • 1.6K
  • 17 Nov 2022
Topic Review
Chemical and Biological Degradation for Perfluorooctanoic Acid
Perfluorooctanoic acid (PFOA) is a perfluoro compound that contains an eight-carbon perfluoroalkyl chain followed by a carboxylic acid function group. It has found applications in water-resistant coating and is produced either by degrading other long-chain perfluorinated carboxylic acids or fluorotelomer alcohol. PFOA is challenging to further degrade during water treatment processes, leading to its accumulation in natural systems and causing contamination. Research has been conducted to develop several methods for its removal from the water system.
  • 1.6K
  • 01 Dec 2023
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