Humanity is demanding ever greater economic productivity at a time when natural resources, the input that feeds this productivity, are dwindling. To reduce pressure on key assets, such as water, minerals, fuel and land, we must use less of them, and we need to increase the efficiency and productivity of resources that we do use, to achieve more output per input. Put simply, we must do more with less. This thematic issue reports on research which helps guide the way to a more resource efficient society.

The Arctic region is home to many unique, diverse and vulnerable ecosystems. But the once pristine Arctic environment is being increasingly affected by human activities. This thematic issue presents the latest research into the impacts of climate change and resource extraction on Arctic biodiversity and indigenous communities.

Energy efficiency is at the centre of EU policy for achieving a fundamental transformation of Europe’s energy systems by 2030. This Thematic Issue reveals the complexity of the issue of energy efficiency, its links with resource efficiency and the wide range of factors influencing it, from technology to social practices.

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.

How environmental agencies can best engage with, and reap the benefits of, Environmental Enforcement Networks (EENs) has been identified in new research. The study used questionnaires and interviews with senior figures from eight environment agencies, spanning seven countries, to identify the key themes of, and ways of improving engagement with, EENs, to extract the maximum benefits. The input was then used to perform a SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis of engaging with EENs, from which options for improved engagement could be developed.

A recent study suggests that exposure to aircraft noise during the day has a greater impact on cognitive ability in children than sleep-disruption caused by exposure to aircraft noise during the night. Protective policy is therefore likely to be most effective if focused at the school level.

Surveys have suggested that the public have become more annoyed by aircraft noise over recent decades. A recent study has investigated whether these results are partly caused by changes in survey methods and participants. However, no methodological issues considered could satisfactorily explain the rise in reported levels of annoyance at a given noise exposure level.

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.

Exposure to aircraft noise at night for more than 20 years could increase the risk of heart disease and stroke, according to research conducted around six European airports. Risk also increased for those constantly exposed to road traffic, but this may have been caused by air pollution rather than noise.

Recent research into the impact of different levels of noise on 75 volunteers reveals that disturbed sleep caused by night-time aircraft noise can damage blood vessels and increase the levels of stress hormones. As these physical changes are potential pathways to high blood pressure, heart and circulatory disease over the long term, reducing night-time aircraft noise is important for preventing cardiovascular disease in people living near airports.

Vulnerable groups of people, including those with long-term illnesses, those sensitive to noise or tinnitus (ringing of the ears), people with mental health problems and unborn and newly born babies, are often more susceptible to physical and emotional stresses. As a result, vulnerable groups of people may be more at risk from exposure to environmental noise than healthy adults. However, there is comparatively little research focusing on the adverse health effects of noise on vulnerable people, say scientists reviewing these health impacts.

Physical inactivity raises the risk of ill health, so environmental factors that reduce the level of physical activity in people should be of concern to policymakers as well as to individuals. A new study has associated long-term annoyance with transportation noise with reduced physical activity in Swiss residents, which may indirectly contribute to diseases including cardiovascular disease, diabetes and obesity.

Researchers have developed a methodology that allows the analysis of how an existing product design meets design guidelines required for the circular-economy perspective, and which guidelines would need to be incorporated to create a better circular-design product. The results, based on a case study of small electrical equipment in Spain, indicate that the most urgent priority is to incorporate circular-design guidelines related to extending life span and to product/components re-use, while there is a moderate need to include guidelines related to the use of simple removable connections or a modular product structure.

To support the move towards a circular economy, in which resources are kept in use for as long as possible to minimise waste, there is great potential for the bioeconomy — those parts of the economy linked to the use of renewable biological resources — to adopt innovative business models and practices, says a new study. However, the study found that bioeconomy businesses instead perceive the circular economy in terms of well-established practices, such as recycling.

A recent study in Finland suggests new building regulations will lead to a substantial reduction in the total energy demand and CO2 emissions in new apartment buildings. This could have an impact on the source of energy used for new buildings. In particular, the demand for space heating will fall, which could have an impact on the source of energy used for new buildings.

There are no technical or economic barriers to providing all of the world’s energy from renewable sources, according to a recent study. With a concerted effort, including reduced demand and international cooperation, the researchers suggest that the world could be entirely reliant on renewable energy for electric power, transportation and heating/cooling by 2050.

Higher atmospheric carbon dioxide levels and temperatures under climate change are likely to increase the rate of corrosive damage in reinforced concrete structures, according to a recent study. This could result in costly repairs in the future, unless structures are suitably adapted.

A new survey from 2010 reveals that upfront costs of up to €14,000 and lengthy payback times can discourage even the most environmentally conscious citizens from installing domestic renewable technology, such as solar panels and wind generators. However, people signing up to a ‘climate pledging’ scheme were still at least 11 times more likely to install these technologies than the average person in the UK.

Scientists’ best estimates of the Energy Return on Investment (EROI) of oil shale suggest it is very inefficient compared to conventional fuel and emits up to 75% more greenhouse gases (GHGs. However, differences in the way energy efficiency is calculated can cause confusion over its potential use, according to the US study.

The rapid decline of Arctic sea ice has had dramatic effects on seals, polar bears, whales and other marine mammals. Changes in distribution, body condition, reproduction and abundance are all consequences of reduced sea ice that may escalate over the coming decade, according to a recent analysis.

For thousands of years, vast amounts of methane – a potent greenhouse gas – have been stored in frozen deposits on land and under the ocean in the Arctic. A new study has found that rapidly rising temperatures are accelerating the release of methane by thawing subsea ‘permafrost’, releasing nearly 8 million tonnes into the atmosphere each year and potentially increasing global warming.

Reindeer herding has a long history in the Arctic, but climate change and industrial activity are bringing this important economic and cultural tradition to breaking point. In a unique initiative, reindeer herders across the Arctic are leading an international team of scientists in using modern technology to adapt to global change and empower indigenous communities.

In a recent experiment in Norway, electrical appliance stores increased their sales of energy-efficient tumble driers when consumers were made aware of their cheaper lifetime operating costs by shop staff and a new product labelling system.

New research on climate-driven reductions in Arctic sea ice has predicted that, by 2040 to 2059, new shipping routes will become passable across the Arctic, linking the Atlantic and Pacific oceans. An increase in traffic has implications for the ecosystems of this fragile area.

US researchers have found that promoting the environmental benefits of energy-efficient products may actually deter some people from buying them. Since environmental issues have become politically polarised, those who hold more conservative views are less likely to purchase products that are marketed using environmental benefits, they argue.

Studies on fracking too often focus on its technical aspects, and not the wider environmental, economic and regulatory context needed for political decision-making, according to a review of existing research by a US researcher. The review provides a framework for understanding these complex issues that could benefit the fracking debate and decision-making about fracking more widely.

The largest ice sheet in the world, the east Antarctic ice sheet, may succumb to climate change faster than thought, according to recent research. Warming ocean currents, triggered by shifting wind patterns, could accelerate melting of the ice sheet, leading to a rise in sea levels, say the researchers.

Science not communicated is said to be science not done, but journalists’ portrayal of scientific findings can sometimes have a negative impact on public perceptions of science and even create false controversy. This study examined how presenting opposing scientific viewpoints affects public perceptions of environmental risk.

Modern technologies have provided new ways for communities to engage with climate change. This study investigated the role of Internet-based tools in disseminating the findings of a climate change research project in Canada and provides insights on how best to use the Internet to communicate the outcomes of scientific research.

Over half of a low-energy building’s environmental impact occurred before it was even occupied, a new case study from Italy calculates. The researchers recommend expanding the environmental assessment of buildings from just the operational stage of a building’s life, when it is in use, to include production and transport of materials, construction activities and building maintenance. A wide range of environmental impacts should also be considered, they argue, and not just energy use.

The most effective way to lower the greenhouse gas (GHG) emissions associated with metal production is to pursue a circular economy for the material in the long term, says a recent study. This century will see a high demand for seven major metals; the resultant overall environmental impact is expected to outweigh any environmental savings that may result from greener production processes or an increased use of renewable energy.

A better understanding of the social factors that affect market-based environmental policies could enhance their success, according to researchers. An analysis of reactions to a proposed waste disposal system in Greece indicated that both trust between citizens and trust in institutions could be highly influential in its implementation.

Italian researchers have demonstrated low-cost techniques which may transform fly ash produced by Municipal Solid Waste Incineration from hazardous landfill into potentially the world's fifth largest raw material resource. The initial results have prompted European Commission funding for a demonstration project under LIFE+.

A recent study has investigated how taxes on virgin raw materials used in construction, such as gravel and sand, have reduced the use of these resources, based on experiences in Denmark, Sweden and the UK. However, greater incentives to recycle these materials are still needed, says the study.

A recent study has found that improved management of phosphorus in the EU would reduce reliance on imported phosphorus, in addition to reducing damage from excess phosphorus in the environment. This could be achieved through the appropriate use of fertilisers and greater recovery and recycling of phosphorus from all waste sources.

Recent research reveals that even remote areas of the oceans are affected by increasing levels of plastic waste on the seafloor. The study found that quantities of litter from human activities, mostly plastic, on the seabed of an isolated Arctic site doubled from 2002 to 2011.

Flat screen televisions and computer monitors should be designed so they can be quickly dismantled for recycling, a recent study says. The researchers calculated that in order to ensure the recycling process remains economically viable, it must be possible to disassemble small screens in less than 11 minutes. Good design could lower the costs of recycling and enable near-total recovery of precious metals from the waste screens.

A recent survey of Dutch mobile phone owners has identified why some consumers buy refurbished mobile phones while others buy new ones. Some consumers perceived refurbished phones to be inferior, which was a major barrier to their purchase. The study’s authors make a number of recommendations to increase consumer uptake of refurbished mobile phones, including promoting the financial and environmental benefits and offering warranties.

Around 50% of gold in used mobile phones is not recovered for future use, a new study finds. The researchers suggest that a global circular economy in mobile phones could be created by improving recycling of precious metals in phones in developing countries, as well as increasing the lifespan of phones and improving collection after use. These changes will reduce pressures on non-renewable resources and close ‘metal flow loops’.

Recycled waste material could play a major role in the construction of roads in Europe, bringing both environmental and economic benefits. A new study proposes a scenario where 50% of the asphalt for Europe’s roads consists of recycled materials, leading to significant reductions in costs, energy use and greenhouse gas emissions.

A successful circular economy for valuable metals needs more than just effective recycling technologies, as a new study shows. The research, which explored the governance of recovering vanadium from steel-industry waste, revealed that industry stakeholders feel the prospect of financial gain, or reduced costs, through recovery is too distant at present. This perception could hinder a circular economy for critical materials from industrial residue, the study warns.

The potential of recycling aluminium scrap in Austria has been modelled in a new study. A surplus of mixed aluminium scrap is expected by 2045 if no advanced sorting technologies are applied. Increased demand for wrought aluminium alloys could mean this surplus occurs sooner. New methods to intensively sort aluminium could prevent this excess and contribute towards REACH1 recycling and climate targets.

In this environment, the delivery of platform-enabled solutions at speed across the entire technology stack becomes even more important, it said. From cloud to networking, data centre to security and more, breadth and depth of capability are essential to recover and restore operations and position organisations strongly for the coming years.

Traditional services also have some very strong propositions, like digital workplace, engineering services. Some of the demand for that is intact and it is only getting accelerated.

In 2008, the injection of CO2 started at Ketzin in Germany, Europe’s first onshore carbon storage site. A recently published paper has reported on the findings of experiments conducted on the rocks at Ketzin, which contributed important information about their safety and feasibility for storing CO2. No significant changes to the rocks were observed 15 months after they had been injected with CO2.

Scientists have reviewed the potential for worldwide development of geothermal energy systems in old, unused mines. The technology is proven in many sites and could therefore help increase the share of renewable energy sources in the energy mix, offering sustainability and job creation, which may make mining operations more appealing to investors, communities and policymakers.

A new approach giving practical guidance for engaging communities in assessing and managing risks associated with re-development of contaminated land could help to smooth local decision making processes. It recommends a set of principles that risk managers and policymakers can use to shape their community engagement activities.

Some agricultural activities, such as irrigation, could be powered by renewable sources, a new study indicates. Farm machinery could also be renewably-powered, but the machinery would need to be adapted to use renewable electricity, instead of liquid fuel.

Recycling offers a promising means of supplying the rare earth elements neodymium and dysprosium, used in computing and low-carbon technologies, research suggests. If recycling infrastructure and technologies are prepared now to deal with the larger volumes of high-tech waste expected in the future, 7-9% of global demand for these critical elements could be met by recycling by the year 2030.