Colombia has made progress towards eliminating fuel and diesel subsidies and reducing discretionary spaces allowing for artificially low fuel prices, but challenges remain. This paper discusses the political economy of fuel subsidies in the country to understand why reform has been so slow.

With headlines of record‑breaking water-related disasters around the world, this blog, written by Kathleen Dominique, OECD Environment Economist, discusses the water impacts of climate change. This post is part of Wikiprogress' series on "water" and the "environment".

A new OECD report describes what Ethiopia and Columbia are doing to sustain development in a changing climate.

In its 2012 edition of the World Energy Outlook, the International Energy Agency (IEA) produced an Efficient World Scenario to assess how implementing only economically viable energy efficiency measures would affect energy markets, investment and greenhouse emissions (GHG). Using the OECD ENV-Linkages macro-economic model, this report simulates the economic and environmental impacts which the IEA Efficient World Scenario implies.

This document provides a detailed technical description of the ENV-Linkages model. The OECD ENV-Linkages Computable General Equilibrium (CGE) model is an economic model that describes how economic activities are inter-linked across several macroeconomic sectors and regions. It links economic activity to environmental pressure, specifically to emissions of greenhouse gases (GHGs).

This paper presents a framework to include feedbacks from climate impacts on the economy in integrated assessment models. The proposed framework uses a production function approach, which links climate impacts to key variables and parameters used in the specification of economic activity. The paper pays particular attention to the challenges of distinguishing between damages and the costs of adapting to climate change.

Climate change and biodiversity loss have increasingly become the subject of international policy deliberations. It is widely recognised that strong and effective international co-operation is required to address these issues. Co-operation in science and technology between developed and developing countries is considered to be of particular importance.

When you think of biodiversity conservation, you probably think of the classic images: the polar bear, the lion, the elephant, the giraffe. The ecological community likes to call them charismatic megafauna, with only a hint of satire.

This meeting addressed green growth policies for small and medium-sized enterprises, water governance in line with green economy requirements, and reporting on the Task Force programme implementation and plans for 2015.

The world will need more and better targeted financing to meet the challenges of global development post-2015. This means taking important decisions not only on what qualifies as official development assistance (ODA), but also on how those flows can be most strategically used.

Water resources allocation determines who is able to use water resources, how, when and where. Capturing information from 27 OECD countries and key partner economies, the report presents key findings from the OECD Survey of Water Resources Allocation and case studies of successful allocation reform.

Concerns around potential losses of competitiveness as a result of unilateral action on carbon pricing are often central for policy makers contemplating the introduction of such instruments. This paper is a review of literature on ex post empirical evaluations of the impacts of carbon prices on indicators of competitiveness as employed in the literature, including employment, output or exports, at different levels of aggregation.

Climate change and, more generally, environmental damage have quantifiable economic and health costs, which weigh on long-term growth and well-being. If left unchecked, climate change is projected to decrease global GDP by 0.7 to 2.5 % by 2060. At the same time, the costs to society of air pollution already appear substantial–equivalent to some 4% of GDP across OECD countries and even higher in some rapidly developing economies.

The OECD Secretary-General, Mr. Angel Gurría, chaired several high-level panels; the OECD actively participated through a series of events, the launch of four new reports and by taking part in a number of workshops and seminars throughout the forum. ‌

Is it possible for 9 billion people to live on this planet and enjoy a good standard of living? And on such a planet, is it possible for economies to grow, businesses to profit, and communities to prosper without undermining the natural systems that support all life? And without destroying some of the planet’s last great wildernesses?

The OECD’s Annual Meeting at Ministerial Level reinforced member governments’ support across a broad range of key OECD work.

Governments are under-utilising taxation as a tool to curb the environmental consequences of energy use, foregoing revenue and weakening their attack on the principal source of greenhouse gas emissions responsible for climate change and air pollution, according to new OECD analysis.

Governments should rethink the role of coal in energy supply as the scale of new investments being made in unabated coal-fired electricity generation poses the most urgent threat to our climate, OECD Secretary-General Angel Gurría said today.

Taxes are potentially among the most effective ways of cutting pollution and greenhouse gas emissions, but they are currently – with very few exceptions – underused; and even where used, they are frequently designed in a sub-optimal way.

Cost-benefit analyses and other quantitative appraisals are used in many countries to support decision-making in public policy, including investment projects in sectors such as transport and energy. This paper discusses the range of approaches which can be employed to value changes in carbon emissions in policy appraisalsand presents some case studies and a survey of current practice in OECD countries.

"Back to the Future" festivities marking 21 October 2015 as the date Marty and Doc travel to the future in the famous film with Michael J. Fox. If only we had a similar time machine allowing us to travel to 2045 to see what the climate has in store to better decide what policies to adopt today. Alas, no time machine has been invented yet but, in the absence of such a cool device, we can rely on climate and economic models...

This report on climate change disclosure in G20 countries takes stock of mandatory climate change reporting schemes in G20 countries and identifies commonalities and divergences between the various schemes.

Participants to the Arrangement on Officially Supported Export Credits have agreed new rules on official support for coal-fired power plants, including restrictions on official export credits for the least efficient coal-fired power plants, the OECD announced today.

Tackling climate change may be costly, but not tackling it will cost even more. And the longer we wait to act, the more our environment, our health and our economies will be damaged. Find out more about the likely impacts of rising GHG concentrations on global temperature, and how that will affect all of us.

In order to help address climate finance-related information needs under the UNFCCC, this paper explores the extent to which currently-available secondary data make it possible to estimate private finance mobilised by developed countries for climate action in developing countries.

Outdoor air pollution is a major determinant of health worldwide. The objective of this paper is to inform the development of improved estimates of the social costs of human morbidity impacts resulting from outdoor air pollution in two components; namely to develop a core set of pollutant-health end-points to be covered when estimating the costs of morbidity, and to review current estimates of the cost of morbidity from air pollution.

The IEA is pleased to announce the second event in its new distinguished speaker series, Big IdEAs, which brings global leaders and decision makers to the IEA to share their views on a range of global issues. On Friday 29 January starting at 11h30, Professor Sir David King, the UK Foreign Secretary’s Special Representative for Climate Change, will speak on "Towards decarbonising the global economy".

Despite a relatively good performance on several points compared to other countries, there is still scope for improving the effectiveness of Israel’s taxation policy from an environmental perspective.

The consequences of degradation of environmental quality as well as the consequences of environmental policies are typically unevenly distributed. In general, poorer countries and lower income households are more severely affected by environmental degradation and at the same time have less capacity to adapt.

This report provides a brief review of how national government policies and guidelines apply to or regulate the use of environmental labelling and information schemes (ELIS) in selected OECD countries. The report reviews definitions relevant to environmental claims and identifies four types of potentially false or misleading environmental claims.

This report explores potential effects of the recent rapid growth in Environmental Labelling Information Schemes (ELIS) around the world, with a focus on the implications of ELIS multiplication for environmental effectiveness and international trade.

A stern warning for climate change, and our health - Shipping brings us 90% of world trade and has increased in size by 400% in the last 45 years. Cargo ships, tankers and dry-bulk tankers are an essential element of a globalised world economy, but they are thirsty titans and they won’t settle for diet drinks. There are up to 100,000 working vessels on the ocean and some travel an incredible 2/3 of the distance to the moon in one year.

Peru is a multicultural, megadiverse country, with abundant ecosystem and natural resources, and an ancient tradition in the sustainable management of its resources. Growing pressures from extractive industries, unplanned urbanisation and deforestation are threatening its natural heritage and the population's well-being.

Water is linked to many economic activities, and there are complex channels through which water affects economic growth. The purpose of this report is to provide background information useful for a quantitative global assessment of the impact of water scarcity on growth using a multi-region, recursive-dynamic, Computable General Equilibrium (CGE) model.

This paper reviews the latest climate projections for West Africa and considers alternative ways in which the knowledge generated from climate science can be understood in the context of preparing for an uncertain future that provides practical help for decision makers.

The OECD has welcomed the release by China and the US of peer reviews of their fossil fuel subsidies.

‌Environment Ministers from OECD and key partner countries gathered in Paris on 28-29 September 2016 to discuss the environmental challenges facing the world and how to promote effective and efficient policy responses, under the guidance of the Chair, Minister Nick Smith (New Zealand) and the Vice-Chairs, Minister Irena Majcen (Slovenia) and Vice-Minister Marcelo Mena Carrasco (Chile).

This brief is a contribution to the 22nd Conference of the Parties to the United Nations Framework Convention on Climate Change (COP22) and a submission of recommendations for the renewal of the Lima Work Programme on Gender. It provides an overview of how well members of the OECD Development Assistance Committee (DAC) are integrating gender equality into their bilateral aid to climate change.

This study was one of the first attempts to evaluate and quantify the benefits of transboundary co-operation between Georgia and Azerbaijan. A specific framework for inventorying these benefits, taking into account all the different dimensions of transboundary water management, was built and applied to the major transboundary water bodies.

New evidence on the effect of energy prices on outward FDI can provide some reassurance in light of concerns about Pollution Havens.

Developing countries are disproportionately affected by the rising trend of losses from climate-related extreme events. This paper uses case studies of Colombia and Senegal to examine how countries are using financial protection as part of their approaches to managing climate risks; it also identifies emerging priorities for development co-operation providers in supporting financial protection against climate risks.

This report provides an analysis of how climate change damages may affect international trade in the coming decades and how international trade can help limit the costs of climate change. It analyses the impacts of climate change on trade considering both direct effects on infrastructure and transport routes and the indirect economic impacts resulting from changes in endowments and production.

This report examines the implications of regional climate governance for international trade and conversely the implications of regional trade governance for climate change action. Regional approaches to climate change governance are discussed with a specific focus on the rise of “climate clubs” and their implications for international trade.

OECD overview report on Employment Implications of Green Growth: Linking jobs, growth and green policies to the G7 Environment Ministers held on 11-12 June 2017 in Bologna.

This paper presents updated results for the cost of ambient air pollution in 41 countries: the 6 major emerging economies known as the BRIICS – Brazil, Russia, India, Indonesia, China and South Africa – and the 35 OECD member countries.

Taxes are effective at cutting harmful emissions from energy use, but governments could make better use of them. Greater reliance on energy taxation is needed to strengthen efforts to tackle the principal source of both greenhouse gas emissions and air pollution, according to a new OECD report.

Mr. Angel Gurría, Secretary-General of the OECD, will be in Brasilia on 21st March 2018 to attend the World Water Forum.

This report focuses on the extent to which governments have complied with the environmental commitments made in the trade agreements to which they are a Party. The report takes a two track approach. First, a review of implementation and evaluation reports associated with environmental provisions in such agreements is performed. Second, a survey of government officials, trade negotiators and other experts is carried out.

This paper reviews the existing literature on modelling the macroeconomic consequences of the transition to a circular economy. It provides insights into the current state of the art on modelling policies to improve resource efficiency and the transition to a circular economy by examining 24 modelling-based assessments of a circular economy transition.

The OECD proposes to conduct a first-of-its-kind review of Indonesia’s green growth policies, with the co-operation of four Ministries.