This article presents the authors' experience with large-scale shaking table tests conducted in Japan using the E-Defense shaking table. The discussion focuses on four criticisms often addressed regarding the utilities of large-scale shaking table tests. Potential solutions to mitigate such criticisms are discussed based on shaking table tests conducted for a pair of three-story wooden houses. The first criticism is that the test specimen anchored rigidly to a rigid shaking table is not a reproduction of actual structures supported by soils and foundations. A model ground was developed in a large sandbox, which occupied about 85% of the total specimen weight, supported the house, and the entire soil-structure system was shaken. Considerable sliding occurred, having lessened the earthquake forces exerted and resultant damage to the superstructure. The second criticism is that a single specimen test, regardless of its size, cannot provide sufficient information for generalizing the behavior and performance. Empirical equations between the maximum story drift and the change in the natural frequency were developed from a series of shaking table tests. Using such empirical equations might promote quick damage assessment of individual houses when suffering from actual earthquakes. The third criticism is the importance of public appeal and eventual support from the general public to secure the budget to operate large-scale testing facilities. The example test featured two nearly identical specimens placed on the table with different support conditions. The apparent difference in response revealed the effect of support conditions on seismic performance. The fourth criticism is the importance of increasing the number of experimental projects to balance the operation budget. Most of the preparation in the example test was accomplished in an open yard adjacent to the shaking table, and the test specimens were quickly assembled on the table using indoor cranes. The table occupation was four out of 35 weeks of the entire test duration.

Targets for ecosystem restoration have been made at global, regional, and national scales, but monitoring of progress remains challenging. Differences in definitions, goals, and practices among restoration initiatives, linked to policy drivers and funding sources, add complexity. We evaluate the current state of ecological restoration activity in Colombia, where, since 2012, legal requirements to compensate for environmental damage may be driving widespread restoration efforts, alongside a long history of government and private restoration initiatives. We systematically searched several public databases, and circulated an online survey, to collect records of 675 terrestrial and coastal restoration projects initiated between 1963 and 2021, capturing data on: location, funding, monitoring, ecosystem type and actors. Location was reported for 613 projects at municipality level, and 261 projects at point level. Restoration aims included recovery of ecological processes, hydrological processes, soil erosion, and natural resources. Only 24 % reported any monitoring, with just 2 % monitoring effectiveness. Forty-one percent of projects were enacted under environmental compensation laws. Funding was mostly from within Colombia, with minimal international funding. This work highlights major gaps in the monitoring needed to achieve effective implementation of restoration targets. Enhancing coordination among institutions, and enhancing monitoring, will now be crucial to achieving restoration goals.

Ethiopia's vulnerability to climate change is exacerbated by high poverty rates, rapid population growth, increasing prevalence of vector-borne diseases, and heavy reliance on rain-fed agriculture. This narrative review aims to compile existing data on the impacts of climate extremes on the physical environment, public health, and livelihoods in Ethiopia, thereby highlighting the significance of this region for such a study. Data were sourced from peer-reviewed journal articles from databases like PubMed, Scopus, and Web of Science, as well as reports and other unpublished documents. Results show that Ethiopia is facing increasing frequency, severity, duration, and timing of climate-related extreme events. Key challenges include environmental degradation, reduced crop yields, recurring floods, droughts, famines, increased heat waves, and spread of infectious diseases. Average daily rainfall is projected to decrease from 2.04 mm (1961-1990) to 1.97 mm (2070-2099), indicating a worsening climate trend. Moreover, the average annual temperature has risen by 1.3 degrees C since 1960, at a rate of 0.28 degrees C per decade. Flood records indicate a sharp rise, with 274 flood incidents recorded in 2020, causing extensive damage, including an annual soil loss of 1 billion tons in the Ethiopian highlands, reducing land productivity by 2.2% annually. Droughts from 1964 to 2023 affected 96.5 million people, reduced GDP by 4%, decreased agricultural output by 12%, and increased inflation rates by 15%. The regions of Afar, Somali, Gambella, and Benshangul Gumuz exhibit extreme vulnerability to health impacts due to rising temperatures. Addressing climate extremes is critical to mitigate their adverse effects on Ethiopia's environment, public health, and livelihoods.

As more US states legalize recreational and medicinal cannabis use, legal market cannabis products present a new and growing potential source of heavy metal exposure. Currently, most states with legal markets only require testing for the big four heavy metals: arsenic, lead, cadmium, and mercury. However, cannabis and hemp plants are known hyperaccumulators of heavy metals from soil and water and may be subject to a much broader array of contaminants. Heavy metal exposure is associated with a wide array of negative health impacts, including cardiovascular and respiratory system damage, making appropriate regulatory limits in consumer products a public health priority. The goal of this study was to characterize levels of 20 heavy metals in Colorado market cannabis flower using newly validated laboratory methods. Flower samples were anonymized and randomly selected from within the inventory of a laboratory that conducts state regulatory testing of cannabis and hemp in Colorado. Flower samples were analyzed using inductively coupled plasma-mass spectrometry. Heavy metal concentrations were generally within previously established ranges for tobacco and cannabis products, with some heavy metals at markedly lower levels than what has been observed in tobacco products. Flower samples that failed state regulatory testing for one of the big four heavy metals had higher levels of chromium and lower levels of beryllium than samples that did not fail for any of the big four heavy metals. Flower samples from indoor grow operations had lower levels of barium, lithium, and selenium than samples from outdoor grow operations. These findings highlight the need for more research into the levels of heavy metal contaminants in consumer cannabis products in Colorado and other US legal markets.

Natural populations of Saposhnikovia divaricata (Turcz. ex Ledeb.) Schischk. have recently been subjected to strong anthropogenic impact due to biologically active substances with a wide spectrum of action detected in plants. The purpose of this study is to determine the state of natural populations of S. divaricata and identify biological features of the species that contribute to the stability of the populations. Seven coenopopulations have been studied in the Republic of Buryatia. Phytocenoses and ontogenetic states of S. divaricata are described, demographic indicators of coenopopulations are given, and environmental and biological factors affecting the existence of this species have been identified. S. divaricata has a wide ecological amplitude and occurs from tree communities to steppes and fallow areas. Its proportion in communities does not exceed 2% of the general projective cover. Most populations are characterized by a low density of individuals (5-48 individuals/100 m2) due to the destruction of plants (root extraction). One stable population without damage (density of 209 individuals/100 m(2)) and one recovering population (113 individuals/100 m(2)) have been revealed. The height of generative plants varies significantly from 35 to 100 cm, depending on the growing conditions. Environmental factors that negatively affect the stability of natural populations of S. divaricata include biotic (massive damage to seeds by invertebrates) and anthropogenic (root harvesting and grazing) ones. A number of biological features determine the strategy of the species in nature: a probable low stock of seeds in soil and a sharp rise in the amount of seedlings during seed dispersal; biological longevity of seeds for more than 5 years; early contractility of roots; dormant buds and renewal buds in the leaf axils of previous years are protected by remnants of leaf sheaths; when the apical bud is damaged, monopodial growth is changed to sympodial (more often at the beginning of the virginal ontogenetic state); duration of the pregenerative period of 10-12 years; and monocarpicity, up to 50% of generative individuals in the population form false whorls, the percentage of fruit formation in a simple umbel is 50-100%.

Despite mitigating several negative impacts caused by the relentless waste production from urban centers, sanitary landfills are enterprises with enormous potential for spreading various kinds of environmental damage. Leachate, a liquid resulting from waste degradation, once disposed into the soil or in surface and groundwaters without proper treatment, will inevitably pollute the environment by the intake of organic matter, heavy metals, and nutrients in violation of legal regulations, causing ecological disruption and posing risks to human health. This study aimed to demonstrate and evaluate the legal and environmental aspects regarding the revocation of the concession for managing the Sanitary Landfill of LagesSC, prompted by an environmental crime that took place on-site, with the legacy of the company awarded the contract being a liability with high remediation costs. To achieve this objective, the research considered regulations related to operational practices in this sector; records of negligent actions by the sectors involved in managing the current situation, using document analysis of public and private archives such as Infraction Notices, Administrative Processes, and Public Civil Actions. It addressed the relationship between the collected data and Environmental Law, and explained civil responsibilities, legal procedures, and environmental measures adopted following the confirmation of the environmental damage.

Using interviews and surveys of 212 households in villages situated at different elevations in the Everest National Nature Preserve (ENNP), correlations and comparative analyses were employed to reveal the residents' perceptions and understanding of climate change and its effects on the ENNP. Results showed that: (1) nearly all residents thought that climate warming and ice-snow landscape decrease were very significant, but there was an obvious difference between the residents' cognition and observations to the change of runoff; (2) higher altitude is, more obvious warming is, and stronger residents' perception of climate change and its impacts is in the ENNP, for which educational level and age were the main factors affecting their degree of perception; (3) especially, higher altitude is, more frequent the tourism participation of residents is and higher their income is; and (4) because the centralized pollutant treatment facilities have a low efficiency, and because the area receives a large number of tourists whose activities are spatially scattered, the potential risk of environmental pollution has been increasing in recent years. At present there is an urgent need for policy suggestions at the strategic level of national ecological security and interregional equity principles concerning the adaptation to climate and environmental changes in the ENNP.

This review offers a synthesis of the current understanding of the impact of low-dose thallium (Tl) on public health, specifically emphasizing its diverse effects on various populations and organs. The article integrates insights into the cytotoxic effects, genotoxic potential, and molecular mechanisms of thallium in mammalian cells. Thallium, a non-essential heavy metal present in up to 89 different minerals, has garnered attention due to its adverse effects on human health. As technology and metallurgical industries advance, various forms of thallium, including dust, vapor, and wastewater, can contaminate the environment, extending to the surrounding air, water sources, and soil. Moreover, the metal has been identified in beverages, tobacco, and vegetables, highlighting its pervasive presence in a wide array of food sources. Epidemiological findings underscore associations between thallium exposure and critical health aspects such as kidney function, pregnancy outcomes, smoking-related implications, and potential links to autism spectrum disorder. Thallium primarily exerts cellular toxicity on various tissues through mitochondria-mediated oxidative stress and endoplasmic reticulum stress. This synthesis aims to shed light on the intricate web of thallium exposure and its potential implications for public health, emphasizing the need for vigilant consideration of its risks.

Introduction: More than 16% of the total electricity used worldwide is met by hydropower, having local to regional environmental consequences. With positive indicators that energy is becoming more broadly available and sustainable, the world is moving closer to achieving Sustainable Development Goal 7 (SDG 7). Pakistan became the first nation to include the Sustainable Development Goals (SDGs) in its national development strategy.Methodology: The current study sought to investigate the structural limits of Environmental Impact Assessment (EIA) guidelines for hydropower development in Pakistan. The study included the document review of the EIA reports about hydropower projects in Pakistan, scientific questionnaires from decision-makers, and public consultation.Results and Discussion: The document evaluates that an adequate mechanism is available, and donors like the Asian Development Bank and World Bank observe the implementation process of EIA in Pakistan. However, a comprehensive analysis of the EIA system found several things that could be improved, not only in the institutional framework but also in actual implementation and practices. More than 20% of respondent decision-makers disagreed with the compliance of the current Institutional Framework with EIA guidelines, and 25% think that the existing guidelines followed in Pakistan are not aligned with international standards and practices for Hydropower in actual practice. EIA has a limited impact on decision-making due to insufficient technical and financial resources.Recommendations: There should be a think tank with experts who can meet the needs of present and future epochs. The public should be communicated with and educated about EIA. For better efficiency, the officers and decision-makers should be trained internationally, i.e., the Water and Power Development Authority (WAPDA).

BackgroundRussia's invasion of Ukraine in February 2022 ignited the largest armed conflict in Europe since World War II. Ukrainian government agencies, civil society organizations, and international agencies have gathered an unprecedented amount of data about the impact of war on the environment, which is often the silent victim of war. We review these data and highlight the limitations of international governance for protection of the environment during time of war.MethodsWe performed an integrative review of academic, institutional, and media information resources using the search terms Ukraine, Russia, war, environment, health, human rights, international humanitarian law, international human rights law, ecocide, and war crimes.Main textNearly 500,000 military personnel have been killed or wounded during the war, and more than 30,000 civilians have been killed or injured. Indirect health effects of the war have likely accounted for an even greater amount of civilian morbidity and mortality. The war has displaced more than 11 million people. Russia's military forces have caused extensive damage to civilian infrastructure. The war has devastated Ukraine's economy and reduced food and energy security in many countries.The war has caused more than $56.4 billion in damage to the environment. There has been widespread chemical contamination of air, water, and soil, and 30% of Ukraine has been contaminated with landmines and unexploded ordnance. Landscape destruction, shelling, wildfires, deforestation, and pollution have adversely affected 30% of Ukraine's protected areas. Russia's seizure of the Zaporizhzhia Nuclear Power Plant and destruction of the Nova Kakhovka Dam have posed risks of long-term environmental catastrophe. Most of these environmental impacts threaten human health.Main textNearly 500,000 military personnel have been killed or wounded during the war, and more than 30,000 civilians have been killed or injured. Indirect health effects of the war have likely accounted for an even greater amount of civilian morbidity and mortality. The war has displaced more than 11 million people. Russia's military forces have caused extensive damage to civilian infrastructure. The war has devastated Ukraine's economy and reduced food and energy security in many countries.The war has caused more than $56.4 billion in damage to the environment. There has been widespread chemical contamination of air, water, and soil, and 30% of Ukraine has been contaminated with landmines and unexploded ordnance. Landscape destruction, shelling, wildfires, deforestation, and pollution have adversely affected 30% of Ukraine's protected areas. Russia's seizure of the Zaporizhzhia Nuclear Power Plant and destruction of the Nova Kakhovka Dam have posed risks of long-term environmental catastrophe. Most of these environmental impacts threaten human health.ConclusionIn addition to enormous human costs, Russia's war on Ukraine has had devastating impacts on the natural environment and the built environment. International law mandates that methods of warfare must be implemented with due regard to the protection and preservation of the natural environment. A just and lasting peace necessitates, among other requirements, rebuilding and restoration of Ukraine's natural environment and built environment. The environmental consequences of all wars need to be investigated and more effective measures need to be implemented to protect the environment during war.