Researchers have developed a new cost-effective tool to assess the impact of policy on biodiversity at a European scale. The study used it to assess the policy of expanding woody biofuel plantations in the EU, which indicated that 28 per cent of wild species would be negatively affected and 10 per cent would experience beneficial effects.

Indications suggest global biodiversity mostly continues to decline, confirming that the goal of halting the rate of loss of biodiversity by 2010 has not been met, according to a recent study. Pressures on biodiversity are increasing despite increasing policy and management responses. However, with greater resources and political will, the researchers argue that the loss of biodiversity could be halted or even reversed.

Pollination of intensively farmed, flowering crops could affect the pollination of wild plants in neighbouring fields, according to a study by German researchers. In their one-year study, they found fewer bees visited wild plants that are close to oilseed rape fields, although the longer-term picture is less clear. The researchers warn that increasing cultivation of biofuel crops could possibly reduce wild flower populations.

High Nature Value (HNV) farmland is agricultural land that supports biodiversity and can be identified by its environmentally sound farming practices. New research on bird biodiversity on French HNV farmland has concluded that conservation of HNV farmland is important as well as conserving areas that were previously HNV and have undergone recent agricultural intensification.

Temporary ponds and their varying water levels provide the conditions for valuable wildlife habitat. A study in Crete, conducted under the LIFE-Nature project Actions for the Conservation of Mediterranean Temporary Ponds in Crete, has demonstrated these ponds contain varied collections of seeds and that these ???seed banks??? could play an important role in vegetation recovery after droughts.

Guidelines to establish reserves protecting deep-sea hydrothermal vents and cold seep ecosystems have been proposed. A group of stakeholders from 14 countries have put forward the Dinard Guidelines for Chemosynthetic Ecological Reserves, to help design and manage reserves for these unique ecosystems in national and international waters.

Crayfish plague, spread by invasive North American crayfish, is currently devastating native European populations. However, while the disease is commonly diagnosed on the basis of diseased animals, free-living infective spores can contaminate water bodies. In the first study to test detection techniques for this disease in natural waterways, researchers found that invasive signal crayfish release low levels of plague spores, allowing it to spread undetected.

New research from central Italy shows that high nature value farmland in the region can be accurately identified by the presence of just four bird species. Once such groups of species have been identified for different regions, they can provide a quick and inexpensive tool for assessing the ecological value of farmland, the researchers say.

Wild plants and animals consumed as food provide an important ecosystem service that deserves more policy attention, claims a recent study. To support their argument, the researchers gathered data which show the significance of wild food to European traditions, cultural identity and recreation.

With over half of Europe’s species dependent on agricultural habitats, protecting ‘high nature value’ farmland is vital to biodiversity conservation. However, the identification and assessment of such farmland requires careful co-ordination, concludes a recent study. The researchers present a framework to help with this process and make a set of key recommendations.

Scientists recommend policies that alternate between mowing and grazing to manage Europe’s high-nature-value grasslands. This comes after a new seven-year study found that a high plant-species diversity helps grasslands to maintain productivity and to resist depletion of phosphorus caused by livestock grazing and depletion of potassium caused by mowing.

Green spaces like urban parks can counteract the loss of plant and animal species caused by urbanisation. For many city dwellers, parks provide most of their experiences of natural spaces. Researchers have compared different methods of park management in Paris and Berlin, and assessed how they influence citizens' attitudes towards nature.

Scientists did not observe changes in plant communities in the coastal dunes of Scotland due to climate change in the past several decades. The region’s proximity to the ocean and its patchy make-up may prevent it from experiencing rapid changes in species distribution.

Although knowledge of biodiversity is increasing, it often receives less attention than other, more anthropocentric policy challenges. To ensure research is better used, scientists and policymakers need to interact more effectively. Through a literature review, interviews and a workshop with key stakeholders, this study provides recommendations for achieving a better dialogue.

Among the ecological effects of climate change are changes to the timing of natural events, such as flowering. To understand why these phenological changes affect reproduction, this study manipulated conditions in a spring herb to prompt premature flowering. This exposed the flowers to frost, and resulting damage caused dramatic reductions in plant reproduction, suggesting that climate change may threaten plant survival.

A survey of deepwater fisheries off the coast of Greenland which used traces of fish DNA has produced similar results to trawl surveys and fishing catches. The ‘environmental DNA’ (eDNA) technique can therefore complement trawl data, the researchers say. It may be particularly useful for surveying large species — which can often avoid bottom trawls — or cryptic species1 in inaccessible ocean areas.

Many would agree that the efficiency of agri-environment schemes (AES) could be improved, but how? A new study considers how AES could deliver ecosystem services better, using peatlands in the UK as a case study. The researchers suggest a number of approaches to improving the link between the payments given to farmers and the environmental benefits they deliver; these include methods of targeting payments to particular areas.

Wildfires are projected to become an increasingly common occurrence and are a major driver of habitat disturbance, yet little research to date has examined how the relationship between fire and landscape attributes affects large carnivores, such as the grey wolf (Canis lupus). The results of this study suggest that wolves are remarkably resilient to fire, persisting and breeding in a human-dominated landscape even under intensive fire regimes. However, burnt landscapes may induce higher exposure to human disturbance and persecution due to limited refuge conditions.

A new study suggests that the energy sources used in chemical production contribute significantly to environmental damage in developed countries. The researchers recommend increasing the efficient use of heat and electricity, in addition to reducing direct emissions of harmful pollutants, to dramatically improve the environmental impact of the chemical industry.

The use of nanomaterials in consumer goods is growing, as is their presence in waste. A new study is the first to follow the fate of engineered nanoparticles through the entire waste incineration chain. The results indicate current filter technology is effective in removing nanoparticles from flue gas, but that nanoparticles also bind to residues, such as fly ash and slag, which eventually end up in landfill.

Changes in complex microbial communities known as ‘biofilms’ at the bottom of rivers can reveal the effects of pesticide and pharmaceutical pollution of river water, according to a recent study. Painkillers and anti-inflammatory drugs were found to have a significant effect on the structure and functioning of the biofilms.

The public places a high value on the use of scientific information, especially regarding climate change, in the management of groundwater resources, a case study in Finland indicates. This suggests that incorporating scientific research into management policies is likely to have the support of stakeholders in the region.

Calculating the costs of nitrous oxide (N2O) emissions to society as well as business is vital to understand the true economic gains of reducing N2O emissions, new research suggests. Increasing nitrogen use efficiency by 20% by 2020 could bring global annual benefits to the climate, health and environment worth US $160 (€118) billion, the researchers conclude.

A technique that can detect the array of pesticides bees might be exposed to has been developed in Poland. The simplicity, speed and small sample sizes required for screening makes this technique an improvement over other methods, say the researchers behind its development.

Environmental specimen banks (ESBs) first emerged in the 1960s and are now essential to environmental management across the globe. ESBs sample and archive environmental specimens and can be used to identify the distributions of chemicals within ecosystems and trace their exposure over time. This study uses the German ESB to illustrate their potential for chemicals monitoring in the EU.

Chickens foraging on soils containing environmental pollutants can accumulate these chemicals in their tissues and eggs. This study assessed levels of dioxins in eggs produced in Poland, in some cases finding concentrations several times above the safe EU limit. The researchers identified the source as preservative-treated wood in the chicken coop, which they say is a public health risk.

Bisphenol A (BPA) is a chemical that is widespread in the environment. Researchers reviewed and critically discussed the sources and routes of human exposure to chlorinated derivatives (ClxBPA) and alternatives to BPA (BPF, BPS), as well as their metabolism, toxicity and concentrations in human tissues. The researchers suggest BPA alternatives and derivatives may have similar effects, and provide directions for future research.

Researchers have developed a technique to recover indium, an important raw material with limited supply, from liquid crystal display (LCD) screens. The method could contribute to a resource-efficient, circular economy.

The Alang shipbreaking yards in India recycle almost half of all end-of-life ships worldwide. The major activity at the yards is plate-cutting, used to recover steel from ships. This process consumes nearly 29 kg of oxygen and 7 kg of liquefied petroleum gas (LPG) and emits almost 22 kg of CO2 per 1 km-long cut with a 1 mm depth. This study reveals the carbon footprint and resources consumed in the cutting of steel plates. The method used to derive these findings could be adapted to ship dismantling yards worldwide.

Many toxic pesticides have been banned by the EU, however some can remain in the environment for many decades. Aquatic invertebrates are particularly vulnerable to pesticides, which can alter their feeding behaviour, growth and mobility. New research has found that persistent pesticides can increase toxicity in streams by up to 10 000 times compared to the residues of currently used pesticides. The researchers recommend these be taken into account when calculating overall toxicity.

New research has shown that flooding of soils contaminated with arsenic, which may occur as sea levels rise due to climate change, could lead to the mobilisation of this toxic element in the environment. The study shows that arsenic is more stable in soil flooded with saltwater, compared to river water, as salt stabilises mineral oxides and could inhibit microbial activity. However, microbes that transform arsenic into water-soluble forms may adapt to saline conditions, and the risk of arsenic entering waters due to rising sea levels should receive further attention.

A recent study has assessed the environmental impact of a group of technology-critical elements (TCEs) — niobium (Nb), tantalum (Ta), gallium (Ga), indium (In), germanium (Ge) and tellurium (Te) — that, to date, have been relatively under-researched. The researchers reviewed published concentrations of these elements in environmental archives and evaluated trends over time in surface waters. Overall, they found no evidence that the rising use of these elements in modern technologies is causing environmental concentrations to increase on a global level. These findings are relevant to future policy discussions regarding the source, usage and presence of less-studied TCEs, particularly in relation to critical raw metals.

The presence of organic pollutants in waste water and drinking water can have alarming environmental and public health implications. Current water treatment methods have limitations: they can only remove certain contaminants, to certain extents, and also produce harmful by-products. New and improved methods are required. A recent review paper presents radiation processing as a promising approach, providing strong evidence of its efficacy, efficiency, safety, and feasibility. Focusing particularly on the use of electron-beam processing for the removal of organic pollutants from waste water and drinking water, the researchers present a compelling picture, relevant to stakeholders involved in water treatment and management.

Copper (Cu) is frequently used in agricultural practices, particularly in fungicides, used extensively in the management of permanent crops, such as vineyards, olive groves, and fruit orchards — all crops of significant economic importance to the EU. An investigation into the factors influencing Cu distribution in the topsoils of 25 EU Member States has identified that, in conjunction with other factors such as topsoil properties, land cover, and climate, such agricultural management practices play a role in influencing Cu concentration. The analysis used 21 682 soil samples from the EU-funded Land Use and Coverage Area frame Survey (LUCAS)¹ and found that vineyards, olive groves, and orchards had the highest mean soil Cu concentrations of all land use categories. The findings highlight the major impact of land use and agricultural practices on soil Cu concentrations and emphasise a need for more sustainable land management practices.

Silver nanoparticles present in the effluent from waste-water treatment plants could have toxic effects on aquatic organisms, new research suggests. The lab-based study tested the effects of nanoparticle-containing effluent on several crustacean and algae species. The researchers observed that epibenthic crustaceans (those living in or on sediments at the bottom of water bodies) were the most sensitive; notably, a 20–45% higher death rate was observed compared with those exposed to nanoparticle-free effluent.

Contamination of the aquatic environment by pharmaceutical drugs used in human and veterinary medicine is an emerging issue, as it can cause toxic effects in biological systems. This study explored how the marine organism Hediste diversicolor, a polychaete worm, responded to exposure to salicylic acid, a key component of aspirin. They found the species to adapt and respond in a way that minimised the effects of metabolising the contaminating compound, suggesting that the acid does not currently pose a threat to marine polychaetes.

Of all the MATLAB or MathWorks toolbox functions that have been mentioned in this blog since 2006, imshow and imread have appeared the most. As in last week's post, they often appear together, right at the beginning: ... read more >>

Using hydrogen as an energy carrier can help reduce air pollution and greenhouse gas (GHG) emissions associated with fossil fuels, according to recent research. However, if used on a large-scale, it is important that hydrogen does not leak significantly into the atmosphere as it might have some negative environmental effects, such as increasing the lifetime of methane, increasing climate effects and causing some depletion of the ozone layer.

Implementation of technology to clean the flue gases of coal-fired power plants has significantly reduced sulphur and fine particle emissions that cause environmental damage. However, recent research suggests that plants applying this technology would emit more ultrafine particles (1-10 nanometer (nm) diameter) that affect the formation of clouds, with the unintended consequence of changing the amount and intensity of rainfall downwind of fossil fuel power installations.

Sea surface temperatures in the North Atlantic may be significantly influenced by air pollution, with knock-on effects for climatic events, such as drought and hurricanes, according to a new study. The findings indicate that estimates of man-made aerosol emissions over coming decades should be refined within climate models to improve predictions of future climate change.

Congestion charges are an effective means of reducing road traffic, but are often strongly opposed by the public. This study combined quantitative and qualitative methods to explore attitudes towards congestion charging in Spain, finding that opposition is reduced when revenues are spent on environmental improvements.

A link between particulate matter (PM) exposure and inflammatory disease has been shown by many studies, but few have explored how the chemical composition of PM influences inflammatory processes. This study investigated the connection between different components of PM and markers of inflammation in the blood, finding that long-term exposure to transition metals, emitted by traffic and industry, may cause chronic inflammation.

Several mitigation techniques can greatly reduce spray drift pollution from pesticide spraying in agricultural systems, shows a new study. Researchers tested the effectiveness of several strategies; results ranged from a 38% reduction in spray drift using low-drift equipment to a 98% reduction when hedgerows are present alongside fields.

Ships that reduce their speed use less fuel, which lowers costs for shipping companies. The slow steaming practice also cuts nitrogen oxides (NOx) emissions. A study found that ships travelling on four European routes lowered their NOx emissions by 12% during the economic crisis of 2008/2009. Shipping continues to be a major way of transporting goods, however, and as the global economy recovers the researchers and civil society call for additional measures to reduce NOx emissions from shipping and improve air quality in Europe.

Due to regulation on sulphur emissions, liquefied natural gas (LNG) has increased in use as a maritime fuel. This study measured exhaust gases from a ship with dual-fuel engines running on LNG and marine gas oil (MGO). Although NOX and CO2 emissions were lower for LNG compared to MGO, hydrocarbon and carbon monoxide emissions were higher. The authors say future work should reconsider the climate impact of LNG.

Researchers have assessed the phyto-toxic effects of copper nanoparticles on vegetables grown within urban gardens, comparing increasing doses of these nanoparticles to simulate potential aerial deposition to extreme pollution of CuO-NP in a range of increasing exposure periods. Lettuce and cabbage absorbed high amounts of copper nanoparticles, after 15 days of exposure, which interfered with photosynthesis, respiration and also reduced growth. Under the specific exposure conditions of the study the researchers indicate that metal nanoparticles could lead to potential health risks to humans from the contamination of crops from pollution.

Fuel spillages and leaks from petroleum storage facilities can lead to serious pollution of soils and underground water. In a recent study, two strains of Rhodococcus bacteria were found to be effective at degrading a number of petroleum hydrocarbons and thus helping clean up contaminated sites.

Synthetic biology (SB) is the design of new biological parts or systems. It could be influential in finding solutions to environmental challenges, but there are also concerns it could be hazardous. A new study has investigated the issues surrounding the application of SB and suggested policy strategies to oversee this area.

Researchers have discovered that an enzyme found in a common soil bacterium can turn carbon monoxide gas into compounds, such as propane, that are useful sources of fuel. This raises the prospect of being able to manufacture synthetic fuels in an environmentally-friendly manner using less energy compared with current industrial processes.

New research suggests that fungi could be used to control insect-borne diseases common in livestock. The study shows for the first time that a fungus can effectively kill adult midges in the family of insects that carry bluetongue virus (BTV). Bluetongue outbreaks have caused significant losses on European farms in recent years, and the study indicates that using the fungus as a means of biological control could help reduce reliance on chemical insecticides, in the absence of effective vaccines.