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.

Approximately 88 megatonnes (Mt) of food are wasted every year in the European Union, causing 186 metric tons (Mt) carbon dioxide equivalent (CO2-eq) — a universal measure for all greenhouse gases. The impact of food waste on the climate, acidification and eutrophication is around 15–16% of the environmental impact of the entire food chain. In developed countries, food waste is high at the point of consumption— so significantly reducing food losses would require a food-waste reduction in households and the food-services sector.

How can we grow more crops without taking too much water away from freshwater ecosystems for irrigation? A new study indicates that it is possible to double crop production by 2050 without exceeding set limits for water extraction if more crops are grown in regions with higher rainfall and with corresponding shifts in international trade and agricultural management. However, without appropriate safeguards, and if we follow the current business-as-usual scenario, this could come at the ecological cost of converting natural land and forest into cropland. This research provides a ‘first-step’ in analysing potential trade-offs in the global food-trade-water nexus.

A survey of over 600 private boats docked in marinas throughout the Mediterranean showed that 71% are carrying non-indigenous species. In certain cases, non-indigenous species can become ‘invasive’ and have enormous and long-lasting impacts on ecosystems. The findings suggest that a common monitoring strategy may be necessary to prevent further disruptions to natural ecosystems.

A new study has investigated the possibility of a regional industrial symbiosis of metal industries across the Sweden-Finland border. The analysis suggests that it is technologically feasible, but that regulatory support may be inefficient, particularly with respect to changing the status of a waste product to a by-product.

Promoting the personal benefits of sustainable consumption, such as more free time and less stress, could play an important role in encouraging more sustainable living, according to a recent study. The researchers interviewed people who lived greener lifestyles and found that self-interest influenced their decision to consume less and buy sustainable products.

Individuals can assess how their behaviour is affecting nitrogen pollution with a newly developed nitrogen footprint calculator, which was developed by a team from the University of Virginia (U.S.) and the Energy Research Centre (ECN, the Netherlands). For many people in wealthy countries, reducing protein consumption to the recommended levels and reducing the amount of red meat and energy they consume would significantly lower their nitrogen footprint.

A new study has shed light on the sustainable credentials of bio-based plastics. It indicates that, as yet, no bio-based plastics are sustainable, owing to practices including pesticide use. However, this could change with further technological development.

There is a need for greater harmonisation of the methods used to estimate the environmental impact of products, otherwise known as product category rules (PCRs). A new study has reviewed the development of PCRs and provided recommendations for better alignment.

There is a need to broaden the debate on sustainable food security from a straight comparison between organic and conventional farming to a consideration of a variety of farming techniques. This is the conclusion of a new review of research that indicates, for some crop types, organic yields can nearly match conventional yields under good management practices and growing conditions.

Fish farms, and other forms of aquaculture, are seen as a potential solution to meeting increasing global demand for seafood. However, according to recent research, they must reduce their reliance on wild fish for animal feed if current production levels from both aquaculture and wild fisheries are to be maintained.

Building Information Modelling (BIM) can enhance the design of a building, reduce costs and save energy. However, little research has been carried out on its impact on sustainable practices. A US survey illustrates that many practitioners do not see sustainability as a primary application, suggesting that more effort is needed to encourage the integration of ‘green’ design and construction into BIM.

Public authorities in EU Member States are encouraged to purchase more environmentally-friendly goods and services through Green Public Procurement (GPP). A recent survey of purchasing managers in Italy has identified some factors that influence their adoption of this strategy, and suggests that a broad knowledge of GPP is key to its implementation.

Local food systems, such as vegetable box schemes or farmers' markets, can encourage sustainable consumption. However, authorities must take care before becoming too involved in such citizen-led initiatives, because these collectives may be wary of government intervention, a new study suggests.

Sediments collected from coastal Louisiana over a year after the Deepwater Horizon oil spill in the Gulf of Mexico have been found to cause health defects in the Gulf killifish. Nearly all adult fish studied had signs of significantly altered gene function and embryos exposed to polluted sediment were less likely to hatch

Alien plant invasions can have significant environmental, ecosystem and economic implications. Since ornamental horticulture is the primary pathway for invasive alien plant introductions, it is a suitable focus for prevention policies. A recent review of published evidence has examined the effectiveness of four major instruments: pre-border import restrictions, post-border sales bans, industry codes of conduct, and consumer education. The study highlights that, while each instrument has the potential to contribute to a reduction in plant invasion risk, none is sufficient to achieve this goal alone. The researchers, therefore, describe how the four instruments can be integrated along the ornamental horticulture industry supply chain to reduce risk more effectively, and outlines the role that government, industry and other stakeholders must play to achieve this goal.

Researchers are on a real-life search for what one calls "the ultimate Pokémon": Zenkerella, an elusive scaly-tailed squirrel that has never been spotted alive by scientists. However, biologists recently found three newly dead specimens that hint at how the "living fossil" has evolved over the past 49 million years.

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Geography and ecology are key factors that have influenced the genetic makeup of human groups in southern Africa, according to new research discussed in the journal GENETICS, a publication of the Genetics Society of America. By investigating the ancestries of twenty-two KhoeSan groups, including new samples from the Nama and the ≠Khomani, researchers conclude that the genetic clustering of southern African populations is closely tied to the ecogeography of the Kalahari Desert region.

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A recent study has revealed that grassland plots planted with a mixture of several agricultural plant species produced a greater yield than plots planted with a single species. The findings provide valuable evidence for scientists, farmers and policymakers who strive to increase the productivity of grassland, while reducing input of nitrogen fertilisers.

Extreme and catastrophic floods in Europe, such as those seen in 2013, currently occur approximately once every 16 years, but this may increase to once every 10 years by 2050, according to new research. The study also suggests that annual average economic losses caused by extreme floods could reach almost five times higher than 2013 values.

Effective flood-risk communications should include specific information on how householders can protect themselves and their property against flooding, a recent Dutch study concludes. The researchers’ evaluation of communication strategies also highlights an important role for social media in spreading messages about flood risk and protection.

A new study suggests gaps exist in the treatment of depression with many individuals who screen positive for the mental health disorder not receiving treatment, according to an article published online by JAMA Internal Medicine.

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28 Aug 2016: The Mediterranean diet is associated with a reduced risk of death in patients with a history of cardiovascular disease, according to results from the observational Moli-sani study presented at ESC Congress 2016 today.1

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A test that can detect Parkinson's disease in the early stages of the illness has moved a step closer.

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Although the causes of Alzheimer's disease are still unknown, it is clear that the disease commences with progressive amyloid deposition in the brains of affected persons between ten and fifteen years before the emergence of initial clinical symptoms such as memory loss. Researchers have now been able to show that Aducanumab, a human monoclonal antibody, selectively binds brain amyloid plaques, thus enabling microglial cells to remove the plaques. A one-year treatment with the antibody, as part of a phase Ib study, resulted in almost complete clearance of the brain amyloid plaques in the study group patients. The results, which were realized by researchers at UZH together with the biotech company "Biogen" and the UZH spin-off "Neurimmune," have been published in the renowned science journal "Nature."

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Parts of Africa and the Asia-Pacific region may be vulnerable to outbreaks of the Zika virus, including some of the world's most populous countries and many with limited resources to identify and respond to the mosquito-borne disease, a new study says.

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Acute exacerbations of chronic obstructive pulmonary disease, or COPD, are associated with significant long-term lung function loss, according to research published online, ahead of print in the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine.

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Farber Cancer Institute investigators report they have discovered a type of immune antibody that can rapidly evolve to neutralize a wide array of influenza virus strains - including those the body hasn't yet encountered.

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Agriculture plays a large role in the management of water in the EU. However, there is little consistent information on water use in irrigation. New EU supported research has estimated how much water is used for irrigation in European countries, providing a framework to analyse agricultural pressures on water quantity.

A fungus could offer an alternative to chemical pesticides for the control of biting midges that spread livestock diseases, including Bluetongue and African horse sickness, according to new research.

Estonian research has identified land use practices and agrochemical use as the main pressures that are causing a decline in pollinating insects in Europe, such as bees and butterflies. It calls for increased funds for agri-environment measures from the Common Agricultural Policy (CAP) to help tackle pollinator loss.

Scientists have identified several wild insects that could undertake the crop pollination function of honeybees. By comparing a range of pollinating insects they found three wild species that appear to be as efficient as the honeybee in pollination but may need management to increase their numbers.

A new global study is the first to quantify the potential of water management strategies to increase crop production. It indicates that a combination of harvesting run-off water and reducing evaporation from soil could increase global crop production by 20 per cent.

Researchers have calculated how much phosphorus is taken from the land by major crops around the world and how much is applied as fertiliser, to help estimate agriculture's phosphorus footprint. Among their conclusions, they argue that phosphorus fertiliser needs to be used more sustainably to address global imbalances in its use.

Indonesia’s plans to double palm oil production by 2020 have obvious financial benefits, but implications for food, biodiversity and carbon stocks are not so clear. A new model predicts the impacts of five possible palm oil production strategies and indicates the best approach is to target degraded and agricultural land that is most productive for palm oil.

Biochar is increasingly mixed into farm soils to improve crop productivity and maintain carbon stocks. However, it can change the way that pesticides applied to the same soil behave, according to a new study. The researchers suggest that farmers may also need to follow new guidelines on pesticide application if they add biochar to their soil.

Sustainable food production in developing countries can be achieved through ‘agroecology’ – where farming practices mimic nature rather than relying on external products, such as fertilisers and pesticides. This is according to a recent report, which claims that conventional farming does little to alleviate rural poverty and ecosystem degradation.

The long-lasting and negative effects of intensive farming on soils persist even where complex animal communities have been reintroduced to the soil in attempt to restore the natural balance, according to a recent study. The findings highlight the possible effects of historical land use on soils' ability to deliver ecosystem services.

There is a need to broaden the debate on sustainable food security from a straight comparison between organic and conventional farming to a consideration of a variety of farming techniques. This is the conclusion of a new review of research that indicates, for some crop types, organic yields can nearly match conventional yields under good management practices and growing conditions.

New research has investigated the long-term effects of applying sewage sludge to Spanish soils. The results indicate that sludge enhances soil properties, but recommends a maximum dose of 40 tons per hectare, applied biannually. Above this level, it appears the soil properties will not improve and may even worsen.

Large-scale cultivation of bioenergy crops on marginal land is unfeasible, according to a recent study. While limiting bioenergy crops to less productive land could cut the sector’s impact on food prices, the financial incentive to grow crops on more productive land may be too strong for landowners to ignore, the researchers suggest.

A recent study has revealed that grassland plots planted with a mixture of several agricultural plant species produced a greater yield than plots planted with a single species. The findings provide valuable evidence for scientists, farmers and policymakers who strive to increase the productivity of grassland, while reducing input of nitrogen fertilisers.

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.

A global cropland percentage map and a global field size map have been created for the first time to guide scientists and policymakers interested in global agricultural modelling and assessment. Both maps are for the baseline year 2005 and combined multiple data sets from global, regional and national levels to achieve a high level of accuracy and 1 km2 resolution.