The globe is at a crossroads in terms of the urban heat island effect, with rising surface temperatures due to urbanization and an expanding built environment. This cause-and-effect connection may be linked to weather-related dangers, natural disasters, and disease outbreaks. Urbanization and industrialization will not lead to a secure and sustainable future. Finding solutions to problems such as the heat island effect is at the forefront of scientific research and policy development. Sustainable ways to decrease urban heat island impacts are a core principle for urban planners. This literature study examines the benefits of adding green infrastructure and sustainable materials in built-up areas to reduce the urban heat island effect. Materials such as reflective street pavements, coating materials including light-colored paint, phase-change materials, color-changing paint, fluorescence paint, and energy-efficient appliances are considered sustainable materials, whereas green infrastructure like green roofs, green walls, green parking and pavements, and shaded streets are considered to mitigate the urban heat island effect. The hurdles to the widespread adoption of such practices include a lack of governmental legislation, insufficient technological development, an erroneous estimation of economic gains, and unwillingness on the part of impacted parties.

Global food security challenges have been burdened by a rapidly expanding population and its attendant food demands. Safer and higher-quality agriculture is one of the most essential solutions for addressing the growing problem. In agriculture that is safer, the quality of irrigation from a safer water source will boost food security. Groundwater is one of the most widely utilized water sources for agriculture. Safeguarding groundwater against contamination and preserving water resources is a rising global concern. Herein, previous literature studies were analyzed to determine the groundwater potential for food production of the various continents around the globe, as well as the various types of groundwater contamination, the sources of groundwater contamination, and the best methods for combating groundwater contamination in order to guarantee safe irrigation for agriculture and thus achieve food security. Consequently, the natural and anthropogenic activities that degrade the quality of the groundwater and transform it into contaminated water from harmful organisms, residues of organic and inorganic soluble and non-soluble salts of the groundwater from chemical, leachate from landfills, sewage systems, and biological contamination, are the major issues in safer agriculture, causing a number of problems in the growth of agricultural crops and leading to a negative impact on food production as well as on the health of the population. Proper identification of different sources of contamination and proper methods to prevent contamination from reaching groundwater, as well as governmental and institutional frameworks to combat contamination and treatment methods to treat contaminated groundwater, will contribute to the future achievement of food security by ensuring a safer irrigation method and agriculture.

This study examines water scarcity and quality deterioration in various components of the urban setting, including agriculture, manufacturing, construction, residential buildings, and the recreational industries. This paper also analyzes various measures that can be used as valuation matrices to assess the quality and quantity of water consumption, as well as conservation practices and sustainable management strategies. The aim of this work is to enhance and encourage an increase in the value of consumed water through economistic, efficient, and sustainable approaches. The analysis includes the evaluation of measures such as price reform, adoption of efficient appliances, implementation of effective utilization techniques, reduction in water waste, treatment of wastewater, and employment of reuse and reclamation techniques. This article further discusses the multifaceted costs associated with the acquisition of water, emphasizing the need to consider not only economic factors but also environmental and social implications. This study examines the potential adverse effects of introducing value-added measures, specifically focusing on the impact of water pricing reforms on farmers and industrial manufacturers. The analysis highlights the potential increase in costs that these stakeholders may face as a result of such reforms. This study suggests that the implementation of subsidies can be an effective measure to mitigate the negative effects discussed. This article highlights the urgent global need for governments and international organizations to implement strict policies and regulations in order to preserve water resources and protect their inherent value and, also, emphasizes the importance of consumers understanding the true value of water in order to grasp its significance and scarcity.

As most people spend their days indoors, it is indeed important that buildings provide residents with a higher standard of health, convenience, and safety. As a result, many practices are implemented into buildings to improve the comfort of occupants, particularly thermal comfort; nevertheless, the energy required to run and maintain these applications is a significant constraint. Renewable energy sources offer alternative solutions to energy demand problems, and selecting the best renewable energy sources is crucial. In this article, we examine the health and well-being advantages to the occupants, as well as the surrounding environment, of a variety of novel strategies that may be integrated into buildings to increase occupants’ thermal comfort for conventional practices using solar power. The key discoveries explored in this article include daylighting, passive ventilation, thermal applications, cooling applications, and power generation. For this, the information was gathered by a systematic review of the relevant prior literature. In addition, the detrimental effects of existing practices on the health and well-being of residents and the environment are included. While there are still some practical obstacles to overcome in the extraction of solar energy, the technology exists. Potential future obstacles to the broad acceptance and usage of solar energy systems in buildings are highlighted, as well as possible solutions.

A DC-DC converter is used between the PV modules and the inverter in a two-stage grid-integrated photovoltaic (PV) system. The dynamic interactions between the maximum power point tracking (MPPT) controller, inverter, and DC-DC converter may affect the system’s performance. This grid-connected system model integrated the MPPT mechanism to maximize the output power of the photovoltaic array, regardless of the temperature, irradiation conditions, and load characteristics. The PV system’s output voltage is regulated using a control technique with multiple inputs. The multiple input controller accommodates the high-frequency switching action in the inner loop, and the PI controller in the outer loop is designed to improve the dynamic performance. The proposed incremental conductance MPPT-based two-stage converter topology is designed and simulated with MATLAB Simulink simulation tool to validate the enhanced performance and analyzed power quality of the current injected into the grid. The performance analysis of the proposed system indicates that the closed-loop performance can be improved in several ways, including a faster response with less overshoot.

Integrating ergonomics into the manual long handle hoe design will minimize work-related musculoskeletal disorders while improving farm workers' health and safety, consequently improving the performance. To what extent ergonomic design aspects have been incorporated into the existing manual hoe types used by farmworkers in Sri Lanka for different purposes for different soil conditions are unknown. This study used farmworkers as subjects to investigate the ergonomics of five different existing hoe types under sandy soil conditions at Ampara district in Sri Lanka. It was found that the hoe type B, which is found with a longer handle (123 cm), smaller blade size (width-21.4 cm and length- 16.3 cm), less weight (1.8 kg) and blade to handle angle of 70°is the most suitable among all the hoe types tested for hoeing operations in sandy soil. The study also found that farmworkers can discriminate between hoe types based on their suitability for the task. The study suggests that further research works are needed to evaluate the existing hoe types to use in different soils for different purposes, which will help improve the hoe type and improve farm workers' health and performance.