This report presents important environmental events and developments of 2012, and provides an overview of the status of key environmental indicators. It highlights the benefits of carbon storage in soil and the decommissioning of nuclear power plants as issues of emerging significance, and aims to strengthen science policy in these areas.

According to UNEP's executive director, although these may seem like separate issues, they go to the heart of questions about ensuring enough food and fuel while combating climate change and handling hazardous waste.

The report points out that the draining of peatlands is producing carbon dioxide emissions that amount to around six per cent of man-made greenhouse gas emissions; and their degradation is occurring 20 times faster than peat is accumulated. It also suggests that the nuclear industry needs to develop safer, faster and cheaper decommissioning of nuclear power plants.

This report, which is part of the UN Foresight Initiative, describes the 21 most pressing emerging global environmental issues — those recognised as very important to well-being by the scientific community, but are not yet receiving enough attention from the policymakers. These cover a range of themes, from food security to biodiversity, energy and technology.

One of the most important cross-cutting issues identified in the report is the need to rethink international environmental governance. Other areas in need of improvement include the science–policy interface, and coping with incremental damage to the environment.

Improving food security in light of changing climate is also high on the list of priorities, with the report suggesting a need for more comprehensive early warning systems, support for smallholder farmers, efforts to reduce food waste and increasing agricultural efficiency. Other issues highlighted include managing the impacts of glacial retreat; improving ocean governance; accelerating the implementation of renewable energy systems; and considering the environmental implications of nuclear reactor decommissioning.

This report explains how acidification, warming and de-oxygenation are affecting the oceans, and encourages policymakers to mitigate these stressors and prepare appropriate policy statements ahead of Rio+20. It was written with the aim of raising awareness of ocean issues at the COP17 in Durban, South Africa.

The report provides definitions of ocean acidification, warming and de-oxygenation. It includes a guide to ocean impacts predicted to occur this century unless greenhouse gas emissions are substantially reduced, and how these impacts will, in turn, affect the climate via feedback mechanisms. It also outlines recommendations for mitigation, adaptation and research to improve understanding of these stressors.

This report analyses the links between energy access, income and livelihoods. It examines the definition of energy access, and reintroduces — and updates — the concept of 'total energy access' as a progressive framework to measure how people use energy in a healthy and productive way.

It states that agriculture is one of the sectors hardest hit by unreliable supplies of electricity, and argues that, for smallholder farmers, more use of modern energy services at various steps along the value chain can contribute to increasing incomes.

The authors conclude that energy access cannot guarantee improved livelihoods without reliability, quality, and cost-effectiveness of energy supplies — combined with access to markets, networks, and sufficient demand. Their analysis also suggests that making the transition from traditional to modern energy supplies holds new opportunities to earn a living from supplying energy.

Reaching poor people with modern energy carries social, economic and environmental benefits, and stakeholders — national governments, donors, utilities, businesses and civil society, community groups, and individual consumers — have a crucial role to play in creating universal energy access.

This report provides information on the development of the solar energy sector in Asia and the Pacific, including investment opportunities and challenges. It also gives an overview of how the Asia Solar Energy Initiative (ASEI), set up by the Asia Development Bank, aims to facilitate the development and deployment of 3,000 megawatts of solar power generation projects in the region by 2013.

Challenges outlined in the report include limited energy distribution technology that can help transmit power to populated areas; the high costs of solar energy development and lack of access to long-term financing; weak institutional capacity; and limited knowledge sharing.

The report concludes that the ASEI can drive down costs, act as a catalyst for solar innovation and serve as a model for other regions that hold similar solar energy potential, such as northern Africa, Latin America and the Caribbean. It highlights the Asia Accelerated Solar Energy Development Fund, a financing mechanism set up specifically to support the preparation of solar power projects in Asian countries.

This report from the Chinese branch of the UN Development Programme investigates how China can reduce its heavy dependence on energy and resource consumption and move to a low-carbon economy. The authors suggest that the key lies in strengthening institutions, integrating policies, and enforcing implementation.

This report examines how renewable energy can help developing countries boost economic development and alleviate poverty. It highlights the benefits of using renewable energy technologies — from increasing access to electricity to creating jobs — and outlines the hurdles to scaling up production, including the lack of subsidies and government support. The report suggests several actions for policymakers, including creating supportive policies, promoting private investment, nurturing micro-enterprise, and building projects around local needs.

This report, published by Greenpeace, highlights global trends and developments in solar photovoltaics (PV). It includes background information on how PV technologies work and an overview of global PV markets, including predictions for market growth to 2030. Applications of PV technology for grid-connected and off-grid energy are presented and the benefits, cost and competitiveness of these are discussed.

The report makes several policy recommendations, including adopting support schemes, removing fossil-fuel subsidies and implementing legally enforced mechanisms to accelerate PV development.

This report, written by Cédric Philibert of the International Energy Agency, provides an overview of solar thermal technologies and examines the economic, technical and institutional barriers to diffusing these. Examples of barriers include high investment costs, lack of trained engineers and lack of awareness among policymakers and the public.

The author suggests several policies to overcome these — for example, by supporting research and development, encouraging professional training, establishing subsidies for solar thermal technologies, reducing import tariffs and carbon trading.

This report discusses opportunities for developing countries to pursue low carbon growth within four key areas: energy efficiency, agriculture, and renewable energy technologies. It presents 20 essays — written by a wide range of economic, financial, climate and food crises experts — that focus on the prospects and hurdles facing least developed countries.

This annual report from REN21 provides an overview of global renewable energy markets and activities in 2008, including biofuels, geothermal, solar and wind. It presents data and information on investment flows, industry trends and the policy landscape, and has a useful section on rural (off-grid) renewable energy. A more in-depth review of rural renewable energy is provided in the 2007 status report. [480kB]

The World Development Report 2010, published by the World Bank, emphasises the urgent need to tackle climate change. The authors stress that developing countries are likely to bear 75-80 per cent of climate change costs.

But as the poorest countries, they must not be asked to choose between economic growth and climate change. They need policies that enhance development, reduce vulnerability and finance a transition to low-carbon growth, says the report.

A 'climate-smart' world is possible if the global community acts swiftly to reduce emissions in the industrialised world as well as rapidly develop and deploy new clean energy technologies, argues the report.

Achieving this requires an equitable and effective global climate deal that helps developing countries access the funding they need to adapt to climate change and move towards low-carbon growth.

This report, published by the UN Development Programme, reviews more than 600 online documents to consider how energy is included in national decentralisation policies and programmes in least developed countries and Sub-Saharan Africa.

The authors argue that decentralisation can significantly improve access to energy, particularly in poor rural settings. They highlight rural energy programmes in Bangladesh, Mali and Nepal to show how energy decentralisation leads to local community engagement in energy planning and implementation.

The authors find that links between energy and decentralisation are rarely discussed in national policy documents.

To take full advantage of decentralisation opportunities, efforts are needed to integrate energy issues into local development planning and processes.

The authors argue that energy priorities must meet local development aspirations and that development workers must strengthen community participation and delivery and local planning processes.

This report, published by the Food and Agricultural Organization of the UN and Policy Innovation Systems for Clean Energy Security (PISCES), presents fifteen case studies of small-scale bioenergy initiatives across Africa, Asia and Latin America.

The authors assess to what extent these initiatives are both providing clean and convenient energy access in developing countries, as well as supporting rural livelihoods.

The case studies focus on a range of bioenergy resources including forestry, agriculture and industrial activities used to meet local energy needs such as cooking, lighting and communication.

The authors conclude that small initiatives can, in some instances, improve energy efficiency as well as increase employment, promote economic growth and improve standards of living. But they highlight concerns with corruption and a lack of local governance.

This report, published by the Food and Agricultural Organization of the UN and Policy Innovation Systems for Clean Energy Security (PISCES), presents fifteen case studies of small-scale bioenergy initiatives across Africa, Asia and Latin America.

The authors assess to what extent these initiatives are both providing clean and convenient energy access in developing countries, as well as supporting rural livelihoods.

The case studies focus on a range of bioenergy resources including forestry, agriculture and industrial activities used to meet local energy needs such as cooking, lighting and communication.

The authors conclude that small initiatives can, in some instances, improve energy efficiency as well as increase employment, promote economic growth and improve standards of living. But they highlight concerns with corruption and a lack of local governance.

This report from the UN Environment Programme (UNEP) calls for international action to combat the global economic crisis with a stimulus package based on clean energy and environmental protection. The author — Edward B Barbier from the University of Wyoming — argues that while stimulating growth and creating jobs are key objectives, unless new policy initiatives also reduce carbon dependency, protect ecosystems and water resources, and alleviate poverty they will not be enough to avert future crises.

Developed countries must remove subsidies and adopt complementary carbon pricing policies, says Barbier. Developing countries should spend at least one per cent of GDP on improving access to clean water and should also expand educational and health services for the poor. And all economies should consider removing water subsidies to increase water efficiency, he adds.

He concludes that the international community has a central role to play in promoting this global green new deal — through global governance, facilitating access to development assistance and enhancing trade incentives.

This report, prepared by Ecofys for the UK Department of Energy and Climate Change, aims to inform discussions on commitments to cut greenhouse gas emissions post-2012, when the first commitment period of the Kyoto Protocol ends.

It contains fact sheets for 60 countries that include data on key indicators including energy investments and consumption; investment in research and development; policies and measures in place; and a list of climate related agreements signed up to by each country. Data are predominantly taken from the International Energy Agency or the World Bank.

The report summarises progress towards targets, trends in fuel switching, economic and structural changes, and population trends. Current national status is also shown with projections up to 2020.

This report examines ways to increase flows of domestic and foreign investment into clean energy infrastructure and technology in developing countries. It is a synthesis report of the International Institute for Sustainable Development's Clean Energy Investment project.

The authors outline the investment climate in developing countries and suggest ways that policymakers can remove barriers and establish incentives. They suggest there is a need for analytical national studies that highlight the obstacles to clean energy investment — such as a lack of clear guidance on future energy policy, monopoly structures for existing producers, and weak environmental regulation — and a concerted effort at implementing policies to overcome these. The authors also discuss existing international investment law, suggesting ways in which this might foster more clean energy investment.

A policymakers summary of the report is also available.