Environment, Climate Change, One Health and Migration

We work to prevent disease and promote health by addressing key areas of environmental health including climate change, clean energy; air quality; water, sanitation and hygiene (WASH); and chemicals and radiation. Health threats are addressed through a One Health approach....

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Technical areas of work

Air Quality, Energy and Health

Chemical Safety and Health

Climate Change and Health

Health and migration

One Health Initiative

Radiation and health

Water Sanitation and Health (WASH)

Settings & populations

Highlights

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Flagship Initiative against extreme heat and related environmental health risks in workplaces and major events

News

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Departmental update

WHO announces the 2024 updated Compendium of interventions on environmental health

Departmental update

Experts warn of serious health impacts from climate change for pregnant women, children, and older people

7 September 2022

Departmental update

Training course on One Health in action against Neglected Tropical Diseases

Departmental update

One Health is critical to addressing zoonotic public health threats and environmental issues

Events

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10 April 2026 13:00 – 14:30 CET

Ultra‑processed foods: a One Health agenda for action and accountability

Speech

Commentaries

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Videos

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Our strategy

Calls for

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Publications

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Prioritizing food safety issues related to chemical water quality in agrifood systems

Reliable access to safe and sufficient water is critical to food security and protecting public health. However, water systems face unprecedented pressure...

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Compendium of WHO and other UN guidance in health and environment, 2024 update

This is the 2024 update of the Compendium of WHO and other UN guidance on health and environment. The Compendium is a comprehensive collection of available...

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Compendium of WHO and other UN guidance on health and environment: version with International Classification of Health Intervention (‎ICHI)‎ codes

In this version of the compendium, each guidance is coded using the International Classification of Health Interventions (ICHI).The compendium provides...

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Ad hoc FAO-WHO Expert Meeting on water contaminants summary report publication cover

The Ad hoc FAO/WHO Expert Meeting on water quality in agrifood systems and food safety implications – focus on chemical contaminants was organized...

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Infographics highlight

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Tools

AIDE-MÉMOIRES: Briefs by environment, climate change and health topic for country action

Essential information to support action

Air pollution and health training toolkit for health workers (APHT)

A set of materials designed to enable health workers, in both the clinical and public health fields, to understand the health risks of air pollution and identify risk reduction measures.

Climate change and health toolkit

A comprehensive set of guidance, tools and training manuals on a wide range of topics on climate change and health

Compendium of WHO and other UN guidance on health and environment

Global repository of interventions for creating healthier environments and improving health. It provides an overview and easy access of 500 actions, and a framework for thinking about health and environment interventions.

Dashboard Migration Experiences Screenshot

Dashboard on Global Experiences in Promoting Refugee and Migrant Health

This dashboard illustrates the positive steps taken by countries all over the world towards better health outcomes for the 1 billion people on the move.

Graphic banner of the Health and Environment scorecards

Health and environment country scorecards

The Health and environment scorecards aim to provide a quick snapshot of where countries stand on managing six major environmental threats to health: air pollution, water, sanitation and hygiene (WASH), climate change, exposure to chemicals, radiation, and occupational health.

SunSmart Global UV App

Free application for mobile devices that describes the level of solar UV radiation at a specific location. It also provides time slots when to apply sun protection measures, in an effort to reduce the global burden of skin cancer and UV-related eye damage.

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WHO/ILO Joint Estimates of the Work-related Burden of Disease and Injury

The WHO/ILO Joint Estimates quantify the number of deaths and amount of health loss (disability-adjusted life years or DALYs) caused by occupational risk factors.

Children under solar panels

WHO Manifesto for a healthy recovery from COVID-19

WHO prescriptions for a healthy, green recovery from COVID-19 that will help steer governments towards a healthier, fairer, and greener world.

Campaigns and initiatives

thermometer on orange sky background

Flagship Initiative against extreme heat and related environmental health risks in workplaces and major events

Alliance for Transformative Action on Climate and Health (ATACH)

BreatheLife: A global campaign for clean air

International Lead Poisoning Prevention Week

WHO – WMO Joint Climate and Health Programme

Q&As

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One Health

Fact sheets

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Stories and facts in pictures

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Health topics

More tools

Related content

Chemical safety

Children's environmental health

Environmental health

Health impact assessment

Occupational health

Radiation emergencies

Refugee and migrant health

Doctors attend to patients in the COVID-19 ICU of the Philippine General Hospital in Manila. They are among the first Filipinos to be vaccinated against COVID-19 in the country

Occupational hazards in the health sector

Child climbing

Introduction to Children's Environmental Health

Two little girls making hearts with their hands

Training modules and instructions for health care providers

Children’s environmental health

Occupational health