Forests can play a critical role in the mitigation of climate change, but at the same time, climate change is threatening the health and condition of forests. Therefore their protection and adaptation is essential. The EU has adopted a green paper on 'Forest protection and information in the EU: preparing forests for climate change'. This special thematic issue provides current information on the dynamics and relationships between forests and climate change and insight into the role of forest management and ecosystem services in protecting EU forests.

Continued reductions in air pollution and greenhouse gas (GHG) emissions are essential, as they pose serious threats to both people's health and the environment across the world. Air quality and climate policies can provide mutual benefits and there can also be trade-offs. This thematic issue reports on research which helps us understand the relationship between air pollution and climate change and how the two policy areas can be integrated to produce the greatest results.

The current economic and environmental crisis tells us that the time is ripe for governments around the world to implement a new kind of economy, which is resilient, sustainable, operates within the limits of our planet's resources and creates a fairer society. This thematic issue covers research which can help policy makers develop this Global Green Economy.

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.

International trade policy is undergoing some remarkable and swift transformations. Environmental considerations were once considered simple 'add ons', on the periphery of trade policy. But now it can be seen that the environment is gradually migrating to the heart of trade policy, as part of an integrated, cross-cutting package. This special issue of Science for Environment Policy reflects on the changing picture of trade and environment and points to its future development.

Product carbon footprinting (PCF) is an increasingly popular method of reporting sustainability impacts. There are a growing number of methodologies and labels addressing carbon footprints in Europe and worldwide, and PCFs are seen both as a way to better communicate and inform consumers and as a tool to reduce the global footprint related to production and consumption activities. The articles in this thematic issue of Science for Environment Policy explore the calculation and understanding of PCF, in order to guide effective policy.

Noise pollution is among the most common complaints regarding environmental issues in Europe, especially in densely populated and residential areas near major roads, railways and airports. But noise - unwanted sound - is more than a mere annoyance, even at levels below ear damaging volumes. The EU's Environmental Noise Directive (END) has initiated action plans in Member States to reduce environmental noise exposure and its effects. This Thematic Issue reports on recent research to help guide effective noise action plans throughout Europe.

Biodiversity and ecosystems provide many critical life support functions and benefits for human wellbeing, security and economic growth, including food, clean water, recreational services and climate regulation. Despite its significant values, biodiversity worldwide is being lost, in some areas at a rapid rate. Given these losses, there is an urgent need for firstly, greater application of policies and incentives to promote the conservation and sustainable use of biodiversity and ecosystem services, and secondly, a more efficient use of available finance in existing biodiversity programmes. PES is a flexible, incentive-based mechanism that has potential to deliver in both of these areas. This Thematic Issue of Science for Environment Policy explores research which can help guide effective Payments for Ecosystem Services (PES) schemes. Under PES agreements, a user or beneficiary of an ecosystem service provides payments to individuals or communities whose management decisions and practices influence the provision of ecosystem services.

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.

Through a combination of human activities and climate change, the European environment is dehydrated. This thematic issue explores potential water management measures aimed at enhancing and safeguarding the water storage potential of Europe's ecosystems and aquifers.

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To meet demand, more and more water is being abstracted from the land and transported long distances. This thematic issue addresses the most pressing policy issues within this field as Europe looks for an effective strategy to deal with water supply and consumption.

This Thematic Issue reports on research into policy targets for sustainability, and associated indicators, to tie in with the launch of the EU's 7th Environmental Action Programme.

Published to mark the 20th anniversary of the Habitats Directive, this latest Thematic issue examines the challenges and successes in managing and restoring biodiversity in the Natura 2000 network.

Brownfield regeneration and land use planning are complex issues which encompass many different environmental, economic and social dimensions. This Thematic Issue brings together quality research into brownfield regeneration, which highlights insights and successful strategies from across Europe and beyond.

Ecosystems are not only essential to human life but can help us face changing conditions in the future. This Thematic Issue brings together the latest research on how the protection of ecosystems, and the services they provide, can form an important part of climate change mitigation and adaptation strategies.

During the last century, large areas of the seafloor have been damaged by human activities such as fishing, sand and gravel extraction and navigational dredging. This Thematic Issue presents quality research exploring the physical damage to the seafloor, new methods for providing seabed information and pressures on marine ecosystems from activities such as deep-sea mining.

Linking land and the sea, coastal zones are unique areas, highly diverse in species, habitats and ecosystems and very important to human activities. But there is a mounting stress on these valuable ecosystems from economic, social and environmental pressures. This Thematic Issue presents key pieces of research that demonstrate tools and experiences for achieving more sustainable coastal ecosystems, and highlights that policy action must continue to strive for significantly improved management.

Exposure to excessive noise is recognised as a major environmental health concern. This Thematic Issue examines the impact of noise on human health and outlines how policy initiatives may limit health effects from noise annoyance - and improve wellbeing.

Nanomaterials – at a scale of one thousand times smaller than a millimetre – offer the promise of radical technological development. Many of these will improve our quality of life, and develop our economies, but all will be measured against the overarching principle that we do not make some error, and harm ourselves and our environment by exposure to new forms of hazard. This Thematic Issue explores recent developments in nanomaterials research, and possibilities for safe, practical and resource-efficient applications.

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.

Managing landscapes effectively requires the involvement of a wide variety of stakeholders. The views and interests of these different groups can be effectively integrated by agri-environment 'collaboratives' — a type of bridging organisation which can be found in varying forms in Europe. Using data from Germany and the Netherlands, a study concludes that these groups make important contributions to landscape management, ranging from implementing policy to generating income.