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.

CCAC activities

Activity | Heavy-Duty Vehicles and Engines Hub
Cambodia | Ongoing
This project aims to support the implementation of Euro 4/IV vehicle emission standards and equivalent fuel quality. This goal will be achieved by developing technical guidelines and additional...
Activity | Agriculture Hub
Pakistan | Ongoing
In Pakistan, agriculture accounts for about 43% of greenhouse gas emissions . Pakistan has included as a priority in its updated Nationally Determined Contribution (NDC) a mitigation measure on...
Activity | Agriculture Hub
Thailand | Ongoing
In 2020, Thailand submitted its updated Nationally Determined Contribution (NDC) to the UNFCCC. Initially, Thailand intended to reduce its greenhouse gas emissions by 20 percent from the projected...
Promoting low emissions rice production in Thailand. Photo: Olivier Polome-Pengthong  on Pixabay


2021 | Policies, Plans & Regulations

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 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...

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...

Quantification of short-lived climate pollutant (SLCP) reductions from soot-free bus strategies in K

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...

Global Green Freight Action Plan: planned activities 2020-2022
2020 | Policies, Plans & Regulations

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...

2019 | Official Statements
, Comisión Centroamericana de Ambiente y Desarrollo (CCAD); Sistema de la Integración Centroamericana (SICA)

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...

Acciones coordinadas para mitigar el cambio climático y el deterioro de la calidad del aire en el Sistema de la Integración Centroamericana (SICA)

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...

2018 | Event Documents
, National Institute of Ecology and Climate Change of Mexico (INECC)

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...

Regional Workshop on Short-Lived Climate Pollutants

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...

2017 | Policies, Plans & Regulations
, Climate and Clean Air Coalition (CCAC); International Council on Cean Transportation (ICCT); UN Environment; C40 Cities

This document is the public statement commitment signed by manufacturers of buses and engines on 27 September, 2017. Manufacturers have committed to:

  • Make soot-free engine
  • ...
Global Industry Partnership on Soot-Free Clean Bus Fleets: Public Commitment Statement

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...

2016 | Online Training & Materials
, Ministerio del Ambiente del Perú; Programa de Naciones Unidas para Medio Ambiente; Coalición Clima y Aire Limpio

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:...


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