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A blue sky
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International Day of Clean Air for blue skies 2024

On this page, explore SEI’s publications, innovative projects and inspiring stories that showcase our commitment to clean air in the last year.

International Day of Clean Air for blue skies logo, resembling a pixelated blue cloud and the title of the day.

Air pollution is a critical global threat, causing 8.1 million premature deaths and affecting 9 out of 10 people worldwide. Investing in clean air is essential for healthier lives, thriving economies and combating climate change.

The International Day of Clean Air for Blue Skies, held every 7 September, raises awareness about the urgent need to tackle air pollution. This year’s theme, “Invest in #CleanAirNow,” calls for stronger partnerships, increased investment, and collective action to secure a healthier planet.

Explore the key messages and learn how you can be part of the solution.

Highlights

SEI’s latest work spans innovative tools for planning low-emission transport in Indonesia, exploring clean air solutions, and addressing air pollution to combat desertification and enhance food security in Africa.

Watch the videos

Events

"Pollution is a silent killer that can be stopped."

United Nations Secretary-General António Guterres emphasizes that investing in clean air “saves lives, combats climate change, strengthens economies, builds fairer societies, and advances the Sustainable Development Goals.”

Read the full message

More stories

Perspectives

Latest publications

Projects

SEI experts

Sarah West

Centre Director

SEI York

Johan C.I. Kuylenstierna

Reader / Research Leader

SEI York

Chris Malley

Senior Research Fellow

SEI York

Gary Haq

Senior Research Associate

SEI York

Kevin Hicks

Senior Research Fellow

SEI York

Eleni Michalopoulou

Research Associate

SEI York

Rhys Archer

Research Fellow

SEI York

Caroline Sawe

Research Associate

SEI York

Jenniffer Pedraza

Research Associate

SEI York

Connie O’Neill

Research Associate

SEI York

Gaurav Tomar

Research Associate

SEI York

Kate O’Reilly

Project Manager

SEI York

Victoria Beale

Communications Specialist

Communications

SEI York

Jennifer Aghaji

Communications Specialist

Communications

SEI York

Jana Busch

Communications Specialist

Communications

SEI York

Diane Archer

Senior Research Fellow

SEI Asia

Philip Osano
Philip Osano

Centre Director

SEI Africa

Cynthia Sitati
Cynthia Sitati

SEI Africa

Ngongang Danube
Ngongang Wandji Danube

Research Fellow

SEI Africa

Steve Cinderby

Senior Research Fellow

SEI York

“Investing in clean air saves lives, protects the planet, boosts economies, and supports the most vulnerable.” – @antonioguterres. See how SEI is driving action for #CleanAirNow and learn how you can help make a difference.

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