Although the immediate side effects of antimalarial drugs are widely recognized, few studies were designed specifically to examine health problems that might occur or persist months or years after people stopped taking them.

Today the National Academies of Sciences, Engineering, and Medicine released its review of the National Toxicology Program’s (NTP) draft monograph Systematic Review of Fluoride Exposure and Neurodevelopmental and Cognitive Health Effects.

A new rapid expert consultation from a standing committee of the National Academies of Sciences, Engineering, and Medicine responds to questions from the White House Office of Science and Technology Policy (OSTP) regarding survival of the COVID-19 virus in relation to temperature and humidity and potential for seasonal reduction and resurgence of cases.

A new rapid expert consultation from a standing committee of the National Academies of Sciences, Engineering, and Medicine responds to questions from the White House Office of Science and Technology Policy (OSTP) regarding the effectiveness of homemade fabric masks to protect others from the viral spread of COVID-19 from potentially contagious asymptomatic or presymptomatic individuals.

Increasing diversity among employees is a priority for many organizations, which spend substantial resources on diversity initiatives.

Saltmarsh restoration can contribute to a range of ecosystem services but, according to new research, the effectiveness depends on previous land use. To optimise restoration, more research is needed on the effects of previous land disturbance on the delivery of ecosystem services and the relationships between physical, biogeochemical and ecological processes.

Populations of otters, grey seals and sea eagles are slowly recovering in Sweden, which is likely to be thanks in part to a ban on organochlorine chemicals, such as PCBs and DDT, in the 1970s, according to a new study. However, the research shows that negative effects of these chemicals on the reproductive health of female animals persisted for more than 15 years after the ban was introduced.

Removing sediment from harbour beds to allow ships to enter can significantly accelerate coastal erosion, the gradual wearing away of land by the sea. A new study highlights this damage and identifies a compensation strategy used in an Italian harbour to mitigate coastal erosion as a good example of effective Integrated Coastal Zone Management (ICZM).

Heat waves are predicted to become more frequent under climate change, and are likely to be particularly severe in cities and towns due to the Urban Heat Island effect (UHI). A recent UK study of UHI mitigation strategies has demonstrated that even a small urban river can result in a cooling effect of 1??C during temperatures higher than 20??C, and that these cooling effects can be improved by careful urban design of the surrounding areas.

To date, it has been difficult to collect data that are robust enough to demonstrate specific effects of chemical pollution in rivers on aquatic wildlife. However, a recent study combining detailed chemical, toxicological and ecological data in three European river basins now provides evidence linking cause and effect by revealing significant differences in the effects of differently polluted sediments on the organisms living in the river basins and the riverbed biodiversity.

A standardised method to help choose the most cost-effective measures to remediate contaminated sites has been developed by Austrian researchers. The method takes into account a wide range of factors, including the principles of sustainability.

In 1989, researchers dragged a plough harrow across the seafloor of the Peru Basin to recreate some of the effects of deep-sea mining. Twenty-six years later, a new team of researchers returned to the site to assess whether there were any long-term ecological effects. They found that the seabed ecosystem remained disrupted, with significantly fewer suspension feeder species, such as anemones and sea sponges, than in undisturbed areas of seafloor. This suggests that deep-sea mining could cause irreversible changes to marine food webs in highly disturbed areas.

A circular economy, in which waste is minimised and resources are kept within the system, relies upon inventive ways of turning waste into a resource. A new study explored the possibility of using the microalga Scenedesmus obliquus to refine and process brewery wastewater. The alga efficiently removed pollutants from the effluent, produced biomass and biofuels in a range of different forms — and with different bioactive compounds — and encouraged waste barley and wheat to germinate at increased rates. This is especially important for breweries, as barley seeds are one of the main feedstocks for the industry — and thus are key to increasing its sustainability and circularity.

New research has recommended using both ecological and carbon footprints to assess the impact of environmental policies and strategies at a regional level. The combination can provide an evidence-based means of evaluating policies to help achieve environmental targets.

A recent Swiss-US study of a short-term water saving campaign found that, although the programme successfully reduced water use, there was also an overall increase in electricity consumption by participants. The researchers suggest a ‘moral licensing’ effect may be in action, whereby people ‘trade’ a positive behaviour for a negative one.

Tightly compacted cities can increase flooding risk for local residents, but sprawling, suburban development can lead to major losses in carbon stored by the land and agricultural production. These are the conclusions of a study which explored the effects of different urbanisation patterns on vital ecosystem services.

The European Directive on the assessment and management of flood risks1 (the Floods Directive) represents a shift towards holistic and catchment-oriented management of flood risk and is likely to prompt changes to policy in many Member States. New research from Germany suggests that effective implementation of the Floods Directive is likely to be greatly aided by the participation of stakeholders and communication between groups.

A new class of drugs called HIF-2 inhibitors is more effective and better tolerated than the standard of care drug sunitinib in treating kidney cancer, researchers with the Kidney Cancer Program at Harold C. Simmons Comprehensive Cancer Center have found.

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The widespread use of higher-yielding improved varieties of crops as part of the ‘Green Revolution’ has averted the conversion of between 18 to 27 million hectares of forests, woodlands and pastures in the period 1965 to 2004, according to a recent study. However, its authors caution that the relationship between these crops and land use change is complex, and good governance is needed to protect biodiversity from future expansion of agricultural land.

Outside the laboratory, living organisms are never subject to single stressors at set doses. In the real world, they face an intricate array of physical, chemical and biological environmental stressors that vary in space and time. The problem of assessing these complex risks for human health and the environment is a great challenge for scientists and regulators alike. For example, even if Maximum Permissible Concentrations (MPCs) for individual contaminants are not exceeded in water, in combination they can still be potentially hazardous to wildlife. This thematic issue reports on scientific research which can help us overcome some of the challenges associated with assessing the combination effects of chemicals.

Important factors in the creation and maintenance of effective Environmental Enforcement Networks (EENs) have been shared by the International Network on Environment Compliance and Enforcement (INECE), one of the first EENs to emerge. By disseminating these ‘lessons learned’ the INECE hopes to facilitate the creation of effective EENs in emerging networks, such as those in Eastern Africa, Western Africa and South America.

Companies that adopt the environmental management system ISO 14000, designed to help reduce businesses’ environmental impacts, generally back this up with sincere investment in environmentally-friendly practices, research suggests. Researchers found that adoption of the ISO 14000 was not ‘greenwash’, but reflected a move towards more sustainable practices in both European and North American companies.

Researchers have developed a straightforward approach to help small to medium enterprises (SMEs) analyse their energy use and increase efficiency. They tested the methodology on 280 businesses in Europe, which, as a result, invested more than €10m in energy-saving measures. The measures reduced energy use by 6 500 toe (tonnes of oil equivalent) per year and avoided 13 500 tonnes of CO2 emissions.

During heatwaves, forests initially have a warming effect on surrounding air temperatures. However, in the longer-term they have a cooling impact, according to a recent study. This new information about plant contributions to temperatures will help further improve climate modelling.

New research investigating the effects of naturally occurring iron fertilisation in the sea suggests that large scale geoengineering projects designed to sequester carbon in the deep sea could have a dramatic impact on marine ecosystems. The study found that the organic matter arriving at the sea floor and the species that live there are very different, depending on whether waters are fertilised by iron leached from nearby islands or not.

The Fukushima accident in Japan has sparked international debate on nuclear energy. A new study has identified five factors which may have influenced the contrasting energy policy responses to the incident in the UK and Germany. Following the disaster, the UK is continuing to back nuclear power generation, whilst Germany is withdrawing support.

Climate change will affect the spread and risk of many infectious diseases in Europe, according to a recent survey of leading health experts. The results suggest that more needs to be done to prepare for the expected changes in infectious disease levels, such as improved monitoring of disease.

Climate change is likely to exacerbate the urban heat island (UHI) effect. A new study has therefore examined possible climate change adaptation measures that can alleviate the UHI effect and illustrated how these strategies can be practically applied. While the study provides real-life examples to demonstrate how the measures can be used, it does not include any quantitative assessment of their impacts.

The impact of climate change on the distribution of tree species is likely to have economic implications for the timber industry. A new study has estimated that climate-induced shifts in range could reduce the value of European forest land for the timber industry by between 14 and 50% by 2100. At the higher end of this estimate, this could equate to a potential loss of several hundred billions of euros.

Green spaces in cities can have a cooling influence which helps reduce the ‘urban heat island effect’. New research from Portugal has demonstrated that even a small community garden can provide a significant cooling impact that can help efforts to adapt to climate change.

Despite the substantial impacts warming and drought can have on soil bacteria and fungi, these are not sustained if external conditions re-stabilise, a new study suggests. Small-scale experiements in five countries across Europe to show that even if warming and droughts continued for over a decade, there were no lasting effects on key properties of soils, such as growth rates, when the soils were allowed to re-stabilise in a laboratory over seven days.

The benefits of CO₂ cuts made now, such as avoided floods and droughts, will be felt within the lifetimes of most people alive today, new research indicates. The study’s authors say their work dispels myths that the main effects of CO₂ emissions will not be felt for many decades. They estimate that it could take 10 years for the maximum warming effects of a one-off CO₂ emission to occur.

Huge amounts of soil carbon have been discovered up to 1 metre below grassland in a recent UK study. Yet most carbon inventories do not assess soil deeper than 30cm. Furthermore, this research suggests that intensive management of grassland, involving high rates of fertiliser use and livestock grazing, may deplete carbon at these depths.

Policies to reduce packaging are effective as long as they remain in place for at least five years and aim for an absolute reduction in packaging volume, experiences from the Netherlands suggest. A study of Dutch packaging policy found that packaging levels fell when such policies were in place, but that the amount of packaging has since risen as policies have become more short-term and focused on reducing packaging levels relative to changes in GDP.

Mussels exposed to high levels of microplastic pollution display signs of stress, new research has shown. However, levels of exposure were higher than found in the wild and no effect on the energy reserves of either mussels or lugworms was observed in the lab. tests. The researchers caution that longer experiments may be needed to reveal microplastics' full effects.

Moving to an area with good access to green spaces has a positive, lasting effect on residents' mental health, new research suggests. The study shows that people who move to greener areas report considerably improved mental health three years after leaving their previous neighbourhood.

The urban heat island (UHI) effect can be completely offset by using 'cool' and 'green' roofs, finds new research from the US. However, the study also found that different roofs may affect rainfall and energy demand, and that their efficiency varies with location.

European policies have eliminated the most visible and harmful effects of air pollution, but current rates of emissions still pose a threat to the environment and to human health. A new study has assessed the policy scope to make further environmental improvements by applying the GAINS (Greenhouse gas-Air pollution Interactions and Synergies) model.

From driving behavioral change to encouraging doctor-patient collaboration, telemedicine’s time in the sun has proved beneficial as a collateral benefit of Covid-19.

Operation IceBridge, NASA's airborne survey of polar ice, is flying in Greenland for the second time this year, to observe the impact of the summer melt season on the ice sheet. The IceBridge flights, which began on August 27 and will continue until September 16, are mostly repeats of lines that the team flew in early May, so that scientists can observe changes in ice elevation between the spring and late summer.

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To increase energy efficiency, many countries are encouraging their citizens to make individual energy-saving changes, such as changing the type of light bulbs they use. This study investigated the relationship between understanding of environmental issues and effective energy-saving behaviour and shows that informed citizens are key to successful policy.

Automation failures have been the cause of such widely reported disasters as the crash of Air France Flight 447 in 2009, with most of the focus placed on deficiencies in the automated system. Although automation does help in avoiding human error in completing tasks, people are still needed to monitor how well the automated system is operating.

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Recent research suggests that increasing the number of private electric vehicles would have very little impact on electricity consumption in Milan, Italy. However, unless there are suitable regulations, the daily demand for power to recharge the vehicles at peak times could overload the capacity of the electric supply system.

Climate change will have major consequences for transport networks, especially those located on coastlines. This study assessed the impact of projected sea-level rise on a vulnerable stretch of railway line on the coast of South West England. The authors say their semi-empirical modelling method could provide guidance to policymakers worldwide.

A new study based on high-resolution satellite observations of forests suggests the 'albedo', or reflectivity, of a forest needs to be carefully considered in afforestation schemes designed to mitigate climate change, i.e. carbon balance alone is not a good indicator of mitigation value. The authors argue that the Kyoto Protocol carbon accounting rules grossly overestimate the cooling caused by afforestation, because they do not consider albedo effects.

A recent study has assessed how climate change could affect the impact of European insect pests on forests to help develop effective forest protection strategies. Changing temperatures may cause some populations of insects to grow or move into new regions of Europe.

A recent paper suggests that the Forest Stewardship Council (FSC) certification scheme has not reduced deforestation, as originally intended, but acts instead as a market governance tool, which may become a barrier to international trade. However, it may develop a conservation role in conjunction with market initiatives which value ecosystem services, such as carbon sequestration through the Clean Development Mechanism.

International trade in wood and wood products affects forest stocks around the world. A recent study examines the relationship between changes in forest cover and international timber trade at global level. If finds that some wealthier nations with low population density can maintain forest areas while exporting wood; but other, usually poorer, nations, are losing forests through domestic and global demand for wood.

The impact of climate change on the distribution of tree species is likely to have economic implications for the timber industry. A new study has estimated that climate-induced shifts in range could reduce the value of European forest land for the timber industry by between 14 and 50% by 2100. At the higher end of this estimate, this could equate to a potential loss of several hundred billions of euros.