International Day of Clean Air for Blue Skies

The International Day of Clean Air for Blue Skies is observed every year on 7 September as a global moment to raise awareness of air pollution and to highlight the importance of clean air for human health, ecosystems and the climate.

The day was established in 2019 by the United Nations General Assembly through Resolution 74/212. Its creation reflects growing international concern about air pollution, which is one of the leading environmental risks to health worldwide and a major contributor to climate change and environmental degradation.

The International Day of Clean Air for Blue Skies draws attention to the often invisible nature of air pollution and its far-reaching impacts. Poor air quality affects cities and rural areas alike, harming human health, reducing agricultural productivity and damaging ecosystems. The United Nations has repeatedly emphasised that clean air is essential for sustainable development and for improving quality of life across all regions.

Each year, the day is marked by a global theme that helps focus attention on priority actions and solutions, from reducing emissions in transport and industry to improving air quality monitoring and strengthening environmental policies. These themes encourage cooperation between governments, scientists, businesses and communities to address air pollution at its source.

The observance is closely linked to international efforts on climate action and sustainable development, particularly those related to health, cities, energy and environmental protection. By promoting cleaner technologies, better urban planning and stronger regulation, the day supports progress towards healthier, more liveable environments.

Overall, the International Day of Clean Air for Blue Skies serves as a reminder that clean air is a shared global good. Protecting it requires coordinated action and long-term commitment to ensure that everyone can enjoy healthier air and truly blue skies.