

The United Nations Environment Programme (UNEP) is the leading global environmental authority that sets the global environmental agenda, promotes the coherent implementation of the environmental dimension of sustainable development within the United Nations system, and serves as an authoritative advocate for the global environment.
Its mission is to provide leadership and encourage partnership in caring for the environment by inspiring, informing, and enabling nations and peoples to improve their quality of life without compromising that of future generations.
UNEP hosts the Coalition's secretariat at its office in Paris, France.
This assessment report looks into all aspects of anthropogenic emissions of black carbon and tropospheric ozone precursors, such as methane. It analyses the trends in emissions of these substances...
Air pollution and climate change are a deadly duo for Africa, and must be tackled together. Air pollutants and greenhouse gases often share the same sources and can be even more...
This document is an in-country study to identify capacity barriers, gaps and needs for a successful development and implementation Nationally Appropriate Mitigation Actions (NAMAs) for the rice...
This report is a product of the Global Methane Assessment (GMA) that details projections of anthropogenic methane emissions through 2030 under various baseline scenarios and assesses the...
This study was initiated to support the national government to enhance policy implementation and establishing ambitious targets to reduce SLCPs. This report summarizes key results from the...
Air pollution and climate change are a deadly duo for Africa, and must be tackled together. Air pollutants and greenhouse gases often share the same sources and can be even more...
This report written by UNEP and the FAO explores how food cold chain development can become more sustainable and makes a series of important recommendations. These include governments and other...
This site displays analyses from the Global Methane Assessment: Benefits and Costs of Mitigating Methane Emissions, which provides an in-depth analysis of opportunities to reduce methane...
The Cambodia Clean Air Plan is a national strategic document aimed at identifying activities to reduce greenhouse gas emissions in Cambodia. The document provides key aspects including air quality...
This report provides an overview of current national and international initiatives around low emissions rice in Thailand. It also assesses the political, institutional, and national capacity and...
The Global Methane Assessment shows that human-caused methane emissions can be reduced by up to 45 per cent this decade. Such reductions would avoid nearly 0.3°C of global warming by...
Reducing human-caused methane emissions is one of the most cost-effective strategies to rapidly reduce the rate of warming and contribute significantly to global efforts to limit temperature rise...
Keeping organic matter out of landfills is a cost-effective way to cut methane emissions from waste. Achieving this requires policies that promote sorting, recycling or composting, but also...
The presentation slides and recording of the webinar "Government Action to Reduce Methane Emissions from Rice Production" can be found below.
This webinar looks at the experiences of the...
This document (2021 update) sets out to guide countries wishing to develop national plans to implement Short-Lived Climate Pollutant (SLCP) strategies.
This SNAP guidance document outlines...
In English below
Reunión virtual sobre actividades pasadas, en curso y planificadas en Argentina que cuentan con el apoyo de la Coalición Clima y Aire Limpio (CCAC).
El...
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Quantification of environmental pollutants is critical towards building city strategies in air quality as well as mitigation benefits attribution. Moreover, it is directly related to national...
Agenda for the workshop held on 21-22 April, 2021.
Methane (CH4) emissions from oil and gas activities are large and poorly quantified, with onshore studies showing systematic inventory underestimates. We present aircraft measurements of CH4...
Efficient and climate friendly cooling is a crucial piece of the climate and sustainable development puzzle. There are an estimated 3.6 billion cooling appliances in use globally today, and...
Each year, the Emissions Gap Report assesses the gap between anticipated emissions and levels consistent with the Paris Agreement goals of limiting global warming this century to well below 2°C...
Food systems, which gather all the elements and activities that relate to the production, processing, distribution,...
Infographic on Food Systems Emisssions and Solutions
This document presents the planned actions until 2022 under the Global Green Freight Action Plan.
Going forward, we will continue our work across all modes to align green freight programs...
This strategy outlines concrete actions by Mexico to reduce black carbon and methane from major sources. The full implementation of this strategy would reduce black carbon emissions by...
The Oil and Gas Methane Partnership (OGMP) methodology was created by the Climate and Clean Air Coalition in 2014 as a voluntary initiative to help companies reduce methane emissions in the...
The United Nations Environment Programme, the European Commission, the Environmental Defense Fund and the Climate and Clean Air Coalition are delighted to invite you to the high-level launch...
Cote d'Ivoire's National Short-Lived Climate Pollutant (SLCP) Action Plan outlines 16 specific mitigation measures from 5 key source sectors to reduce SLCPs in the country. ...
A letter from Inger Andersen, Executive Director of the United Nations Environment Programme, to Permanent Representatives to the United Nations, informing them of the...
The United Nations General Assembly resolution 74/212 to hold an International Day of Clean Air for blue skies during its 74th session and...
Thanks in large part to the growing number of integrated assessments, tools and good examples, international interest in applying integrated co-governance approaches to solve connected climate,...
The report Air Pollution in Asia and the Pacific: Science-based Solutions is the first-ever comprehensive scientific assessment of air pollution outlook in the region. It outlines 25...
In 1998 Beijing began an intensified air pollution control program, and over the last 20 years the city has implemented a series of measures including energy infrastructure optimization, coal-...
La mitigación de los contaminantes climáticos de vida corta ofrece una oportunidad de alcanzar máximos beneficios a través de una coordinación de acciones para limitar tanto emisiones de GEI como...
Clean Household Energy Transition presentation by Dr. Alice Kaudia at the Africa Climate Week 2019, on 21 March 2019 in Accra, Ghana.
Green Energy Finance presentation by Francis V.M...
This report identifies 25 clean air measures that can positively impact human health, crop yields, climate change and socio-economic development, as well as contribute to achieving the Sustainable...
This is the first webinar of a series that highlights the latest efforts to reduce emissions from heavy-duty vehicles. This is a recording of the webinar held on June 4.
Agenda:...
Concept Note on the Global Alliance to Significantly Reduce Methane Emissions in the Oil and Gas Sector by 2030
This document outlines the opportunities for delivering efficient and climate friendly cooling for all.
Published in time for the Fourth United Nations Environmental Assembly, UN Environment’s sixth Global Environment Outlook (2019) calls on decision makers to take immediate action...
The new report “Global Linkages – A graphic look at the changing Arctic”, produced by UN Environment and its collaborating center GRID-Arendal, is a set of maps and graphics, accompanied by short...
Entities that wish to commit to reduce methane from the oil and gas sector and join the Global Methane Alliance should complete and sign this form.
Presentation on Mozambique’s Experience on the Adoption of Fuels and Emissions Standards, by Jane Akumu, UN Environment, delivered at a CCAC Heavy-Duty Vehicles Initiative webinar on 19 September...
Operation manual on zigzag firing practice in Urdu
UN Environment presentation titled "Overview of UN Environment’s Used Vehicles Work Focus on Africa" at the ...
New York City is taking bold action through its OneNYC 2050 Plan to mitigate emissions from its staggering number of nearly 1 million buildings – with a focus on retrofitting existing...
Infographics on addressing air pollution through clean vehicles, available in all UN languages: Arabic, Chinese, English, French, Russian and Spanish.
This report presents the findings of a Climate and Clean Air Coalition (CCAC) study to assess the feasibility of a household energy finance facility to provide affordable end-user finance for...
The Global Strategy to Introduce Low Sulfur Fuels and Cleaner Diesel is the first global plan to move all countries to low and ultra-low sulfur in fuels and advanced diesel emissions standards by...
This report assesses progress in 2018 toward implementing the Global Strategy to Introduce Low-Sulfur Fuels and Cleaner Diesel Vehicles of the Climate and Clean Air Coalition (CCAC). The rapid...
Reducing sulfur in transportation fuels provides immediate near-term emission reductions to improve air quality and mitigate climate change by reducing emissions from the existing, on-road fleet....
As part of the Climate and Clean Air Coalition’s National SLCP Planning Initiative (SNAP), Nigeria has prepared a National Action Plan to reduce SLCPs. The country is motivated to undertake the...
Key messages:
This document is the meeting report (in spanish) of the Regional Expert Workshop on Air Quality and Short-lived Climate Pollutants, that took place from 21 to 23 March 2018 in Mexico City. It...
This document is a report from the Institutional Strengthening Workshop, organised by the Initiative “Supporting National Action and Planning (SNAP) on short-lived climate pollutants” of the...
This is the third Annual Report of the Oil & Gas Methane Partnership (OGMP), a voluntary, public-private initiative aimed at minimizing methane emissions from global oil and gas upstream...
Presentation on Guidance to Fuel Importing Countries for Reducing On-Road Fuel Sulfur Levels for the webinar conducted on 20 and 22 November 2018.
Este informe técnico, Avances y Oportunidades para Reducir los Contaminantes Climáticos de Vida Corta en América Latina y el Caribe, analiza ejemplos de iniciativas y medidas que han reducido...
Draft agenda for the meeting taking place on July 10-11, 2018.
This is the report of the Regional Expert Workshop on Air Quality and Short-lived Climate Pollutants that took place from 21 to 23 March 2018. It brought together participants from 12 countries...
The Spanish press for the launch of the Integrated Regional Assessment for SLCPs in Latin America and the Caribbean. The report was launched on April 19, 2018. See the English version of the story...
Numerous countries in the past few years have deregulated their fuel markets by eliminating or reducing subsidies and allowing for free market pricing, taking advantage of the recent low...
This report presents a bottom-up, activity-based global inventory of BC emissions, residual fuel use, and residual fuel carriage from commercial ships in the global fleet for the year 2015. Ship...
This presentation presents the BreatheLife campaign, and provides the audience with information about how to build a local BreatheLife campaign. The presentation is in Spanish.
“Burn Right” is a campaign launched in Sweden and Chile, along with a global online campaign sponsored by the CCAC. It asks woodstove users to followia few simple steps to get...
BYD Auto Company commits to make soot-free engine techonology available in 20 targeted cities. Read the commitment statement:
The Frankfurt School UNEP Collaborating Centre for Climate & Sustainable Energy Finance and its local partner cBalance are conducting a study on behalf of the Coalition on “...
El Ministerio de Ambiente y Desarrollo Sostenible de Colombia y ONU Medio Ambiente, comprometidos con la prevención y el control de la contaminación del aire llevaron a cabo el Webinar “...
Cummins Inc. commits to make soot-free engine techonology available in 20 targeted cities. Read the commitment statement:
International experience shows that the incorporation of clean fuels has a positive effect that directly affects the emissions of PM, SO2 and other polluting gases, both in new vehicles, and...
The aim of the Heavy-Duty Diesel Initiative of the Climate and Clean Air Coalition is to virtually eliminate black carbon and fine particulate emissions from the on-road vehicle fleet by 2030. The...
This document presents results from the Climate & Clean Air Coalition’s Finance Initiative reported between July 2016 and June 2017. These results were recorded using the Demonstrating...
Urban buses produce one-quarter of black carbon emissions from road transport, despite constituting only 1% of the global on-road vehicle fleet. Black carbon is a potent short-lived climate...
This document is the public statement commitment signed by manufacturers of buses and engines on 27 September, 2017. Manufacturers have committed to:
This document presents results from the Climate & Clean Air Coalition’s Household Energy Initiative reported between July 2016 and June 2017. These results were recorded using the...
This study shows that in almost all cases, a switch away from dedicated CNG and diesel buses can be justified not only to achieve soot-free emissions but also to generate the greatest climate...
The meeting was organised by the Climate and Clean Air Coalition (CCAC), as part of the Supporting National Action and Planning on short-lived climate pollutants (SNAP) Initiative. UN Environment...
This document is the meeting summary of the official launch of Nigeria’s Climate and Clean Air Coalition projects.
A Spanish language brochure produced by Peru's Ministry of Environment that outlines the Climate and Clean Air Coalition's acitivities, and the benefits of reducing short-lived climate pollutants...
CCAC, UN Environment Finance Initiative (UNEP FI) and Frankfurt School of Finance & Management join hands to implement the project titled ‘Technical assistance for financing brick kiln...
This document presents results from the Climate & Clean Air Coalition’s Waste Initiative reported between July 2016 and June 2017. These results were recorded using the Demonstrating...
The overall objective of the “Reducing black carbon emissions by transitioning to clean and sustainable lighting” project is geared at accelerating increase in the access to clean lighting by...
These workshop materials were delievered as part of the technical assistance and capacity building provided for formulation of national policy for energy-efficient lighting and strategy for...
This presentation was given by Rob de Jong, Head of UN Environment's Transport Unit, at a meeting in Geneva called: Ensuring Better Air Quality and Reduced Climate Emissions through Cleaner...
The third session of the UN Environment Assembly (UNEA-3) adopted 11 resolutions submitted by Member States.
The 'Draft resolution on preventing and reducing air pollution to improve...
CCAC in partnership with U4E endeavours to reduce black carbon emissions by transitioning to alternative clean and sustainable lighting through policy support and advocacy in high-impact...
This Guidance Note provides recommendations for the government and other key stakeholders in the Nigerian renewable energy sector towards actualizing the transition to clean modern lighting and...
This Case Study provides a step-by-step view of how the Euro VI adoption in Santiago City in Chile.
Scania commits to make soot-free engine techonology available in 20 targeted cities. Read the commitment statement:
This document presents results from the Climate & Clean Air Coalition’s SNAP Initiative reported between July 2016 and June 2017. These results were recorded using the Demonstrating...
The Paris Agreement adopted in 2015 set the specific goal of holding global warming to well below 2 degrees Celsius (°C) compared to pre-industrial levels, and of pursuing ...
This document outlines the theory that will bring about the change of mainstreaming adoption of non-fluorinated-refrigerant cooling technologies through a technical assistance (TA) facility. The...
This document presents results from the Climate & Clean Air Coalition’s Urban Health Initiative reported between July 2016 and June 2017. These results were recorded using the...
Volvo Bus Corporation commits to make soot-free engine techonology available in 20 targeted cities. Read the commitment statement:
The 2016 Adaptation Finance Gap Report explores the costs of meeting adaptation needs and assesses the funding that is available for meeting those needs. It suggests that although international...
Diesel engines power the dominant share of goods movement, construction equipment, and public transport vehicles in the global economy. This strategy presents a roadmap to reduce small ...
Since 1998, Beijing has prioritized air pollution control and moved aggressively to control emissions from all sources. The city’s efforts in this endeavour over the past 15 years is...
Recognising the growing global threat of air pollution, the United Nations Environment Assembly (UNEA) adopted resolution 1/7: Strengthening the Role of the United Nations Environment Programme (...
Recognising the growing global threat of air pollution, the United Nations Environment Assembly (UNEA) adopted resolution 1/7: Strengthening the Role of the United Nations Environment Programme (...
La experiencia internacional muestra que la incorporación de estos combustibles más limpios tiene un efecto directo en las emisiones de MP, SO2 y otros gases contaminantes, tanto en vehículos...
Facsheet prepared by the CCAC on the Coalition's efforts to reduce emissions of black carbon, other pollutants and greenhouse gases from the freight sector.
Prodcued by: ...
The sixth Global Environment Outlook (GEO-6) Regional Assessment for Africa paints a comprehensive picture of the environmental factors contributing to human health and well-being at the regional...
The sixth Global Environment Outlook (GEO-6) Regional Assessment for Asia and the Pacific paints a comprehensive picture of the environmental factors contributing to human health and well-being at...
The sixth Global Environment Outlook (GEO-6) Regional Assessment for Latin America and the Caribbean paints a comprehensive picture of the environmental factors contributing to human health and...
The sixth Global Environment Outlook (GEO-6) Regional Assessment for North America paints a comprehensive picture of the environmental factors contributing to human health and well-being at the...
The sixth Global Environment Outlook (GEO-6) Assessment for the pan-European region highlights the state and trends of the environment and enhances the science-policy dialogue underpinning the...
The sixth Global Environment Outlook (GEO-6) Assessment for West Asia paints a comprehensive picture of the environmental factors contributing to human health and well-being at the regional level...
Based on evidence of the linkages between poor environmental quality and health, the report identifies several priority problem areas for urgent policy attention, including:
Summary for Decision Makers from the first regional assessment of short-lived climate pollutants in the Latin America and Caribbean (LAC) region. Through this assessment, policy makers and...
This publication comprises two sections.
Section 1 on commercial refrigeration, specifically retail food refrigeration firstly provides a brief sector overview and includes six new case...
A report on the 1st Regional Conference on SLCPs and Air Pollution, that took place in Lima, Peru, May 4-6 2016. The conference consisted of: i) A workshop on the Peru's SLCP strategy; ii) A...
This short paper summarises the findings of the first six HFC inventories carried out with CCAC support. Sections 2–7 summarise the main findings for each country, while Section 8 provides...
2016 was the first year that CCAC OGMP Partner companies have produced Annual Reports. The six OGMP founding companies provided reports in 2016 covering 2015: Eni, Pemex, PTT, Southwestern Energy...
Facsheet prepared by the CCAC on the Coalition's efforts to reduce black carbon emissions from ports and marine vessels.
Presentación utilizada en el webinar "Respira La Vida: Aire Limpio, Futuro saludable para las ciudades del Peru" sobre la campaña Respira la Vida, el 7 de diciembre de 2016.
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This power point provides an overview of the objectives of the Institutional Strengthening support provided by the SNAP initiative of the CCAC. It outlines the activities that participating...
This presentation discusses the reasons why the world should reduce black carbon emissions from diesel vehicles and outlines the strategy to do so via the...
Penang, Malaysia, is working to reduce methane emissions from its municipal solid waste by reducing the amount of organic waste reaching its landfills. Penang's composting project has created...
La Organización Mundial de la Salud (OMS) y la Coalición de Clima y Aire Limpio (CCAC) se han asociado en una campaña global de sensibilización acerca de la contaminación del aire y la salud:...
For the first time, UNEP has adopted a comprehensive gender policy to guide it's projects (e.g. ensuring women's and men's equal participation) and operations (e.g. via staff recruitment...
Facsheet prepared by the CCAC on Carbon Emissions from Heavy Duty Diesel Vehicles and Engines. (December 2015)
This report, by Chinese scientists and experts, takes up the task of identifying how China can achieve the potential benefits from mitigating SLCPs by synthesising current China-relevant knowledge...
As countries phase out hydrochlorofluorocarbons (HCFCs) under the Montreal Protocol on Substances that Deplete the Ozone Layer, they often need to make choices between high-GWP HFC alternatives...
This market baseline study provides a global overview of auto fuel (both crude and refined) and vehicle markets in various sub-regions where higher sulphur fuels (in particular, diesel fuel) are...
This document contains the decision by the 19th Meeting of the Forum of Ministers of Environment for Latin America and the Caribbean to adopt the regional plan of action on Atmospheric Pollution...
This Framework document lays out the structure of the Partnership and is intended to serve as a detailed addendum to the Memorandum of Understanding that companies will sign to join the...
This brochure explains introduces the Partnership for Clean Fuels and Vehicles (PCFV), the campaigns it runs, its goals, insitutional framework, and achievements. The PCFV promotes the adoption of...
This report offers a guide to compiling emission inventories in developed and developing countries, as well as a training material for human resource development. The Emission Inventory Manual is...
This document provides a conceptual and methodological framework that countries may apply and adapt to their particular circumstances. It outlines a possible process and poses questions that...
In July 2012, the “Advancing Ozone & Climate Protection Technologies: Next Steps” conference was held in Bangkok, Thailand with over 400 participants, including representatives from industry,...
In order to assist countries, in particular developing countries, in planning and implementing HCFC transitions that minimize climate impacts, the Climate and Clean Air Coalition to Reduce Short-...
The conference and concurrent technology exhibition attracted over 400 participants including industry, policymakers, environmental organizations, and academia. The conference objective was to...
Due to the phase-out of hydrochlorofluorocarbons (HCFCs), under the Montreal Protocol, hydrofluorocarbons (HFCs) emissions are dangerously growing. This report describes the linkages between...
This assessment report looks into all aspects of anthropogenic emissions of black carbon and tropospheric ozone precursors, such as methane. It analyses the trends in emissions of these substances...
This report addresses the mitigation of short-lived climate forcers (SLCFs) and its key role in air pollution reduction, climate protection and sustainable development. SLCFs are substances in the...
The report, compiled by a team of researchers from Asia, Europe and the United States, discusses the effects of atmospheric brown clouds (ABCs) in the Asian region.
Authors:...