Environment, Climate Change, One Health and Migration (ECO)

We prevent disease by strengthening countries’ environmental health capacities: water, energy, air quality, climate, and emerging risks. Our One Health approach links human, animal, and environmental health, while inclusive systems address migrants’ and refugees’ health needs.

More about us

Technical areas of work

Air Quality, Energy and Health

Chemical Safety and Health

Children’s environmental health

Climate Change and Health

Cross-cutting

Health and migration

One Health Initiative

Radiation and health

Water Sanitation and Health (WASH)

Emergencies

Interventions

Monitoring

Settings & populations

Training

Highlights

Seventy-ninth World Health Assembly – Daily update: 23 May 2026

18 – 23 May 2026

Health, climate change, air quality and energy at the 79th World Health Assembly

News

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20 May 2026

Departmental update

Belem Health Action Plan High Level Side Event, World Health Assembly

18 May 2026

Departmental update

WHO launches advocacy, communications and partnerships plan on the health response to climate change, air pollution and energy poverty

18 May 2026

Departmental update

WHO introduces PREVENT technical package to address lead poisoning

12 May 2026

Departmental update

Quadripartite partners and global stakeholders step up coordinated action at One Health Summit

Events

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23 – 27 November 2026

Seventh WHO Global School on Refugee and Migrant Health

25 June 2026

ATACH High-Level Strategic Meeting

10 June 2026 15:00 – 16:30 UTC Time

Healthcare Sector Global Framework on Chemicals (GFC) Implementation Programme - 2 sessions

Speech

19 May 2026

WHO Director-General's address to Member States at the 79th World Health Assembly – 19 May 2026

Commentaries

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20 November 2025

World Toilet Day: Protecting health through safe sanitation

Videos

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6 May 2026

Honouring home: a Marshallese voice for climate justice

17 November 2025

Special message for COP30, Dr Herbosa, Secretary, Philippines

13 October 2025

Mercury exposure and health: Sixth COP meeting of the Minamata Convention on Mercury

health for all - film festival student prize

Our strategy

WHO global strategy on health, environment and climate change: the transformation needed to improve lives and wellbeing sustainably through healthy environments

The new strategy is timely – it responds to and is in line with the 2030 Sustainable Development Agenda and the GPW13.

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Calls for

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22 May 2026

Call for consultant

Request for expression of interest: Technical coordination and analytical support for black carbon evidence synthesis and fossil fuel integrated tool development

30 March 2026

Call for consultant

Call for consultant – Data analyst to assist with updating WHO energy access databases to support SDG 7 and related health impact monitoring and reporting

Publications

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The World report on promoting the health of refugees and migrants: Monitoring progress on the WHO global action plan provides the first global baseline...

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World report on promoting the health of refugees and migrants: monitoring progress on the WHO global action plan: executive summary

The World report on promoting the health of refugees and migrants: Monitoring progress on the WHO global action plan provides the first global baseline...

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WHO international scheme to evaluate household water treatment technologies: results of Rounds III and IV

This report presents the performance results of 21 household water treatment (HWT) products evaluated in Rounds III and IV of the WHO International Scheme...

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