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Topic Review
Digital Elevation Models
Digital Elevation Models (DEMs) of planet Mars are crucial for many remote sensing applications and for landing site characterization of rover missions. Shape from Shading (SfS) is known to work well as a complementary method to greatly enhance the quality of photogrammetrically obtained DEMs of planetary surfaces with respect to the effective resolution and the overall accuracy.
  • 594
  • 21 Jun 2022
Topic Review
Removal of Dyestuffs from Effluents onto Biochar
Processing significant amounts of dye effluent discharges into receiving waters can supply major benefits to countries that are affected by the water crisis and anticipated future stress in many areas in the world. When compared to most conventional adsorbents, biochars can provide an economically attractive solution. In comparison to many other textile effluent treatment processes, adsorption technology provides an economical, easily managed, and highly effective treatment option.
  • 613
  • 20 Jun 2022
Topic Review
Cyanophage–Host Relationships
Harmful algal blooms (HABs) are naturally occurring phenomena, and cyanobacteria are the most commonly occurring HABs in freshwater systems. Cyanobacteria HABs (cyanoHABs) negatively affect ecosystems and drinking water resources through the production of potent toxins.
  • 597
  • 20 Jun 2022
Topic Review
India Biomethanation of Crop Residues for Stubble Burning
Stubble burning in India continues despite the severe consequences on the environment and the massive health crisis in the country. Farmers resort to such practices as a cheap and hasty solution post-harvest, which helps them prepare for their next crops. Converting the agricultural leftovers to biomethane energy is recommended as an effective mitigation method, which handles the large volumes of stubble and protects the environment from further air and soil pollution, generating a green biofuel that could be converted to heat and electricity.
  • 400
  • 20 Jun 2022
Topic Review
Indigenous Kinabatangan Perspectives on Climate Change Adaptations
Indigenous perspectives on the effects of climate change are frequently elicited through surveys and interviews, and the responses are compared to meteorological data. However, there remains a limited approach to examining the underlying predictors that best determine Indigenous support for adaptation strategies. Some Indigenous communities do not draw a causal link between the effects and responses to climate hazards. Coping strategies such as the inclusion of Indigenous livelihoods, a bottom-up approach, and transparent communication are suggested to cultivate Indigenous support for climate change adaptation. 
  • 462
  • 17 Jun 2022
Topic Review
Geodiversity and Geotourism
Geodiversity has recently emerged as a key idea for recognizing the value of abiotic nature. The concept has vital implications for informing tourism sustainability research; however, to date, tourism scholarship has not shown adequate engagement with this concept. The issue also assumes further significance in the Anthropocene, where our species has become a geological force. It is argued that, in the Anthropocene, it is no longer enough for tourism sustainability research to remain preoccupied with the human predicament in the Anthropocene or the decline of biotic nature at some prominent tourism destinations, and it is imperative that tourism scholars embrace the concern for abiotic diversity and dynamic earth processes that provide vital resources and services for tourism planetwide.
  • 458
  • 17 Jun 2022
Topic Review
Geo-Environmental Characterization of High Contaminated Coastal Sites
Despite its remarkable geomorphological, ecological, and touristic value, the coastal sector of the Apulia region (Southern Italy) hosts three of the main contaminated Italian sites (Sites of National Interest, or SINs), for which urgent environmental remediation and reclamation actions are required. These sites are affected by intense coastal modification and diffuse environmental pollution due to the strong industrialization and urbanization processes that have been taking place since the second half of the XIX century. The Apulian coastal SINs, established by the National Law 426/1998 and delimited by the Ministerial Decree of 10 January 2000, include large coastal sectors and marine areas, which have been deeply investigated by the National Institution for the Environmental Research and Protection (ISPRA) and the Regional Agency for the Prevention and Protection of the Environment (ARPA) with the aim of obtaining a deep environmental characterization of the marine matrices (sediments, water, and biota). High-resolution and multidisciplinary investigations focused on the geo-environmental characterization of the coastal basins in the SIN Taranto site have been funded by the “Special Commissioner for the urgent measures of reclamation, environmental improvements, and redevelopment of Taranto”.
  • 471
  • 17 Jun 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.
  • 489
  • 17 Jun 2022
Topic Review
Petroleum Coke on Hg0 Removal
As the solid waste by-product from the delayed coking process, high-sulfur petroleum coke (HSPC), which is hardly used for green utilization, becomes a promising raw material for Hg0 removal from coal-fired flue gas. The effects of the physical–chemical evolution of HSPC on Hg0 removal are discussed. The improved micropores created by pyrolysis and KOH activation could lead to over 50% of Hg0 removal efficiency with the loss of inherent sulfur. Additional S-containing and Br-containing additives are usually introduced to enhance active surface functional groups for Hg0 oxidation, where the main product are HgS, HgBr, and HgBr2. The chemical–mechanical activation method can make additives well loaded on the surface for Hg0 removal.
  • 508
  • 16 Jun 2022
Topic Review
Biological Influence of Aerosol Nutrients
The aerosol contains major ions, heavy metals, and organic matters that are important external nutrients in upper oceans and potentially influence marine microbes and biogeochemical cycles. Therefore, the role of atmospheric deposition to oceans has received growing attention. 
  • 589
  • 15 Jun 2022
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