Long-distance travelling accounts for a significant number of miles travelled per person, but estimates of its greenhouse gas emissions are lacking. Using data from Belgium and the Netherlands, this study estimates that long-distance journeys account for 40–50% of total mileage and 50% of greenhouse gas emissions of all people transport in Western Europe.
How are Denmark, Finland, Iceland, Norway and Sweden moving towards renewable and lower-carbon energy use? A recent study suggests the key areas for progress, to ensure Nordic countries meet low carbon goals, include more renewable and decentralised electricity supply, the development of low-carbon transport systems, improved energy efficiency in building design and industrial use of carbon capture and storage.
The move towards smart mobility systems in cities across Italy, specifically in relation to public transport systems (including cycle infrastructure, and cycle and car-sharing schemes) has been assessed in a new study. The researchers say significant progress has been made in light of new guidelines imposed by the European Union, which is often linked to financial investment, as well as the capacity of city planners to implement changes.
In the automobile industry, the development and manufacture of increasingly complex technological components — catalytic converters, LEDs, electric motors, batteries — requires increasingly complex and diverse raw materials with specific qualities. The technological and economic importance of these materials, combined with their vulnerability to supply shortages and likelihood of supply interruptions, indicates their ‘criticality’. This study uses a new methodology to explore the criticality of 27 key metals used in the automotive industry and other sectors, and highlights six that are especially vulnerable: rhodium, dysprosium, neodymium, terbium, europium and praseodymium. The researchers found there was limited recycling and substitution of these metals and a high possibility of restrictions to their supply.
New research highlights that potential to use forest materials as bioenergy to reduce greenhouse gas (GHG) emissions from fossil fuel use must be balanced against the role played by forest stocks as carbon storage facilities.
Annual maps of forest cover in Indonesia reveal that, between 2000 and 2008, almost 10 per cent of forest cover on the islands was lost. Around one fifth of this loss occurred in regions where logging is restricted or prohibited. The new maps will help Indonesia meet the objectives of the UN REDD+ programme, which aims to reduce deforestation and forest degradation.
Over 20% more carbon could be being released by tropical peatlands than previously estimated, a new study suggests. The research highlights the large quantities of carbon lost to rivers from deforested and degraded peatlands in Indonesia, in addition to carbon released as CO2 gas.
Recycling waste products between companies in industrial recycling networks can bring environmental and competitive benefits. A recent study on whether such networks can be used to advance sustainable development more broadly suggests companies first need a clear, shared network identity before other types of sustainability-oriented cooperation can take place.
Researchers have developed a method to assess the sustainability of regeneration projects that could potentially be administered by a computer. The method tailors the universal goals of sustainability to specific local conditions.
Cooperative management can deliver successful and sustainable fisheries, according to a recent global study. The role of strong leadership was essential to this success. Other necessary conditions included the allocation of individual or community fishing quotas, strong community cohesion and having community-based protected areas.
Adopting the Green Economy approach will reap greater environmental, social and economic benefits, compared with a society that focuses on economic growth as the measure for future development, according to a recent UN report. Using two per cent of global GDP to ‘green’ key sectors could be enough to trigger the transition towards a green economy.
A new EU-commissioned report has investigated the social value of biodiversity conservation, particularly in terms of its links to employment. It estimates that 35% of jobs in developing countries and 7% of jobs in the EU are dependent on ecosystem services.
The extraction, trade and consumption of materials, such as biomass, minerals, metals and fossil fuels, are the main drivers of most global environmental problems, according to a new report. Action must be taken now to achieve the policy target of a global ‘green economy’.
The extraction, trade and consumption of materials, such as biomass, minerals, metals and fossil fuels, are the main drivers of most global environmental problems, according to a new report. Action must be taken now to achieve the policy target of a global ‘green economy’.
With ever-increasing global consumption, the impacts of resource depletion, land use change and pollution are being felt worldwide. A new study reveals how international trade is shifting the environmental burden from the consuming nation to other parts of the world, and calls for changes in the way national material use is accounted for.
‘Doing good’ can lead to ‘doing well’ for companies that implement corporate sustainability, according to a new study by Polish researchers. Eighty-five American companies that met corporate sustainability criteria proved to have better returns and greater stability in stock price than average, and better growth rates than their less sustainable counterparts.
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.
An overview of ‘material efficiency’ is provided in a recent study, which assesses a range of technical and sociological approaches to material efficiency. The need for drastic efficiency improvements is highlighted by the researchers, as well as cuts in the total amount of materials used.
A new tool to help planners choose urban designs that positively influence flows of energy, carbon, water and pollutants in cities is presented in a recent study. It is designed to integrate scientific knowledge into the planning process and support cities in achieving sustainability objectives.
A pilot Marine Spatial Planning (MSP) project in the UK has found MSP to be a useful approach in managing marine waters sustainably. Sharing the knowledge and experiences gained in developing the Shetland Islands’ Marine Spatial Plan (SMSP) can help other authorities in the process of developing similar plans, says the project team.
Policies and programmes providing technological solutions to improve household energy efficiency alone may be insufficient to actually reduce overall household energy consumption, finds new research. The research examined home renovators’ motivations, behaviours and use of green technologies. Overall, reduced energy consumption was often undermined by other considerations, such as installation and maintenance costs, aesthetic considerations and daily routines or social concerns.
Approximately 1000 km2 of agricultural or natural land is lost every year in the EU due to land-use change. When this occurs close to residential areas, it can lead to conflict with local people. This study explored the views of local people in Romania, and compared them to experts. The authors discuss similarities and differences, and say that participation, where both locals and experts communicate, is key to developing effective land use policies.
International regulation does not address non-CO2 emissions from aviation, despite their climate-warming effects. This study reports the findings of the AviClim research project, which investigated the feasibility of including CO2 and non-CO2 species in international protocols. Of several trading scenarios assessed, the authors found that a global emissions trading scheme for both kinds of emissions would be desirable in both environmental and economic terms.
When broken down, ships can release hazardous substances into the environment. This study investigated the environmental impact of shipbreaking in one of Europe’s few ship recycling yards, based in Portugal. The results reveal large differences between assessment methods and show that environmental impact depends on composition rather than size or class.
An inventory of materials used in ship construction could minimise waste and increase ships’ recycling rates and resale value, according to the Sustainable Shipping Initiative (SSI). Although extra data management would be required on the part of suppliers, manufacturers and owners, it would help make the industry more efficient and future-proof with regard to developments in international legislation on ship building.
The Alang-Sosiya shipbreaking yards in India highlight the inequalities and opportunities of global waste management. The yards, which recycle retired ships from more economically developed countries, have dramatically altered the ecosystems and social structures of the local area. A study looking at stakeholder perceptions analyses different positions on the social and environmental impacts of the yards.
Systems for ensuring industry compliance with pollution regulations in eight countries have been assessed by an OECD study. OECD countries have been making good progress in designing and introducing new environmental policies. However, they are generally not on track to meet the policies’ goals. A major reason for this ‘implementation gap’ is low compliance with respective regulatory requirements, for instance, emission limit values.
Ireland’s Environmental Protection Agency (EPA) established the Network for Ireland’s Environmental Compliance and Enforcement (NIECE) over 10 years ago to ensure an effective, integrated, national approach to the enforcement of environmental legislation, as presented in a recent conference paper and a report from the EPA.
International trade has increasingly relied on material resources since the 1990s, according to a new study. The research used the most detailed global computer model available for capturing the effects of international trade on the environment and on the efficiency of resource use between 1995–2011. Sharp increases in the trade of cheap ‘fast fashion’ and mass market electronics are highlighted as two of the fastest growing drivers of this change in material inefficiency.
Extended producer responsibility (EPR) and other regulatory influences are essential to battery recycling in Finland, a new study finds. The researchers compare this with the situation in Chile, where a lack of appropriate legislation prevents recycling companies from overcoming the technical and financial challenges of battery recycling. The study helps policymakers understand how political, social, and cultural factors can support companies in their move towards circular-economy business models.
A more circular economy could reduce global levels of raw material extraction by 10% by 2030, a new study suggests. It could also drive a slight increase in overall employment levels, but the types of jobs available would change significantly, moving away from low- and medium-skilled work in the manufacturing and mining sectors and opening up more opportunities for medium- and high-skilled jobs in the service sector.
A new study has analysed the impact of industrial and agricultural changes on nutrients in Estonian rivers. The results indicated that there were significant reductions in nitrogen in one third of the sites, significant reductions in phosphorus in a quarter of sites and significant reductions in both nutrients in nearly a tenth of sites.
Individuals and groups of individuals have been influential in changing the Tisza River water policy in Hungary, according to a new study. A shift away from engineering solutions towards sustainable flood management was achieved through new policy ideas being recognised by civil servants at the national level and a regional coalition championing the ideas at the local level.
A new study has analysed public perceptions of greywater re-use systems in Barcelona, which are being increasingly employed to save water during times of shortage. Several factors, including perceived health risks, system reliability and maintenance costs, appear to influence public acceptance of the technologies.
Recent work in the coastal Mediterranean waters of the ‘Comunidad Valencia’ in Eastern Spain confirms that wastewater treatment plants (WWTPs) are a significant source of pollutants that need monitoring under the Water Framework Directive (WFD) and Priority Substances Directive. However, these substances also directly enter coastal waters from mixed urban, industrial and agricultural sources, creating a challenge for the development of control measures.
Rebates and exchange programmes for showerheads, toilets and washing machines can produce significant water savings, according to a US study. The study observed a 6 to14% reduction in household water demand for the first two years after these efficiency programmes were introduced by a water authority in Florida.
To restore a river site to good ecological status involves comparing it to similar sites that have been far less affected by human activity. A recent study has established a set of guidelines that define an acceptable level of human pressure that can be used to identify these minimally disturbed sites and ensure consistent ecological assessment among EU Member States.
One of the most common causes of water quality impairment is suspended particulate matter (SPM). A study by a team of UK researchers suggests that standards for SPM set by EU member states to help achieve the WFD should reflect the natural differences in the levels of this pollutant that are expected in contrasting environments. Their study provides hints as to how a potential alternative system for regulating SPM concentrations might be devised.
Researchers have proposed a new framework to assess the potential for redeveloping large contaminated brownfield sites. The framework applies a range of spatial assessment methods to analyse remediation costs, economic value and the sustainability of different land-use types, and to recommend suitably mixed land-use options for redevelopment.
Pioneering methods used in the Netherlands combine remediation of brownfield sites with the use of groundwater for heat cold storage (HCS, or ATES: Aquifer Thermal Energy Storage) to achieve both low-cost remediation and sustainable use of energy.
According to a recent study, flood risk management projects should be economically evaluated in terms of their efficiency, i.e. the sum of the costs and benefits of a project over its lifetime. This would capture more fully the value of non-structural measures, such as warning and evacuation systems, that are better in terms of effectiveness related to hydrological protection standards.
Investment in cycling initiatives, such as creating new cycle lanes or providing training, can increase the number of people who routinely cycle to work, a new large-scale study in the UK suggests. Town-wide cycling initiatives seemed to be particularly successful when they included workplace measures such as bike lockers, showers and cycle parking.
Eight key features for increasing the climate change resilience of water management and spatial planning projects are presented by new Dutch research. These include: focusing on the long term, integrating the projects with other sustainability measures and encouraging stakeholder participation.
From rising seas to fiercer and more frequent storms, climate change effects are putting increasing pressure on coastal populations and ecosystems throughout Europe. Human activities, such as farming and land-use changes, are already in conflict with ecosystems. However, linking ecosystem services with social preferences in coastal land-use management can lead to more sustainable resource planning, finds a new study. The researchers developed guidelines for a participatory climate change adaptation process, which integrates the social effects of adaptation measures with the ecosystem services that they affect.
A low cost, low energy method to disinfect water using electricity has been developed by researchers by combining carbon nanotubes (CNTs) and silver nano-wires with existing materials. The technology has the potential to be used in portable disinfection devices in developing countries.
Climate change is predicted to increase the frequency and severity of flooding in coming years. For more effective flood alleviation, this study recommends schemes that consider the social impact of floods as well as the economic damages.
Small field wetlands are a simple and effective way to reduce soil erosion and nutrient pollution, recent research suggests. The authors adapted Norwegian designs for the UK environment and created a series of small rectangular lakes on the edges of agricultural fields. After three years, the wetlands had prevented tonnes of soil from leaving the land, and helped alleviate some of the nutrient run-off that would have affected neighbouring waterways.
A method for assessing urban neighbourhoods’ resilience to flooding has been presented in a recent study. The method identifies features of urban landscapes that contribute to three elements of flood resilience: resistance, absorption and recovery. In a German case study, the tool shows that the features which make a waterfront neighbourhood of Hamburg more flood resilient include high bridges, open public spaces and flood-protected basements.