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Published on 14 July 2025

Mitigating environmental pollution

Environmental pollution causes multiple and substantial collateral damages but has not yet been tackled systematically. SDC’s work in this thematic priority focuses on the quality of air, water and soil.

Retrofitting of heavy duty vehicles in China

Environmental pollution poses a major threat to ecosystems, agricultural productivity, and human health in all countries, and affects vulnerable groups the most. In addition, some pollutants – methane, tropospheric ozone, black carbon and hydrofluorocarbons – are responsible for up to 45 per cent of current global warming. Thus, reducing environmental pollution offers a multitude of potential co-benefits, and the SDC supports initiatives that have the potential to generate substantial co-benefits for health, food security, the environment and the climate. These initiatives include raising the profile of pollution on policy agendas and testing and sharing effective approaches to reducing environmental pollution.

🧺Themes and potential focus areas

  • Reducing air pollution such as black carbon and particulate matter through support of air quality monitoring, clean air policies, and action plans and awareness raising on multiple levels
  • Reducing water pollution by improving wastewater treatment and reducing pesticides and nitrogen-based fertilisers in agriculture
  • Reducing waste through a circular economy approach
  • Supporting initiatives that enhance environmental protection, and addressing environmental pollution from natural and technological disasters (hazardous materials) or other type of crisis

💡Project examples

  • Clean Air Project in the Indo-Gangetic Plain (CAP IGP) - Phase 2: With Swiss expertise, this project addresses transboundary air pollution with a financial contribution to the World Bank’s regional Air Quality Management program to provide cleaner air to 680 million people, by developing states and regional plans and supporting coordinated sectoral measures by decision-makers in Bangladesh, India and Nepal.
  • Climate and Clean Air in Latin American Cities + 2 (CALAC+2): The project is implemented by Swisscontact and supports its partner countries in developing and implementing ambitious air quality management plans and policies, with a focus on urban public transport and non-road mobile machinery with direct interventions in Chile, Colombia, Mexico and Peru.
  • Air Pollution Impact on Health, Mongolia: The project goal is to reduce the risks of air pollution to maternal and child health through enhanced knowledge, evidence based policy, improved institutional capacity and action on the ground to reduce exposure. It also aims at strengthening health services for vulnerable children and pregnant women, and will contribute to reduced incidence of 1) pneumonia amongst children under 5, and 2) of air pollution related pregnancy risks.

Further Projects:

👓Further Resources

Air Pollution in Harbin, China

27 October 2025

Learning Journey on Air Pollution, Climate and Health – Session 2

On October 15, 2025, the CDE Network hosted the second session of a two-part learning journey exploring the links between air pollution, climate and health.

Air Pollution in Harbin, China

7 October 2025

Learning Journey on Air Pollution, Climate and Health – Session 1

On September 25, 2025, the CDE Network hosted the first session of a two-part learning journey exploring the links between air pollution, climate and health.

24 September 2024

The Green Agenda for the Western Balkans: How Swiss International Cooperation can support

 In the run-up to operationalising the provisions of the International Cooperation Strategy 2025-28, the Green Agenda for the Western Balkan is a fertile ground for synergy.A learning journey was launched in autumn 2024 to delve into possibilities of aligning of the Swiss portfolios in Water, Environment and Economy with the Green Agenda WB.

13 June 2024

Webinar: Heavy metals in drinking water: a proposal for their removal

The water network RésEAU, the CDE Network and the Regional Hub in Lima of the SDC held webinars on June 11 and 13, 2024 to discuss an innovative technology to remove heavy metals from drinking water

21 August 2023

How to Reach Net Zero in the Aid Sector

The SDC hosted on August 21, 2023 the "Climate Action Accelerator" presentation by Bruno Jochum, Executive Director of this initiative

Contact

SDC Network Climate, DRR & Environment
Swiss Agency for Development and Cooperation SDC
Eichenweg 5
3003 Bern
Switzerland