The United Nations (UN) General Assembly’s Second Committee passed a resolution declaring September 7 as the “International Day of Clean Air for Blue Skies” during its 74th session. The theme for the International Day of Clean Air for Blue Skies’22 is “The Air We Share.” It emphasises the need for communal accountability and collective action by concentrating on the trans-boundary aspect of air pollution. The problem of air pollution is global and widespread. Air pollution is the largest contributor to the burden of disease from the environment and is one of the leading unavoidable causes of death and disease globally. Ninety-nine per cent of the world’s population is now breathing polluted air, warns WHO. Seven million people die each year due to air pollution, with 90 per cent of them in low and middle-income countries (WHO, the Lancet Planetary Health).
Currently, people are using cars so much that traffic is one of the major problems in many countries of the world. To solve this problem worldwide, every year on September 22, the “World Car-Free Day” is celebrated in many countries. The first “World Car-Free Day” was celebrated in 2000 and in our country the day was celebrated by some people and individual organization in 2006 on their own initiative. From 2016 onwards, the government here started celebrating this day. The purpose of this day is to set aside just a single day each month for taking vehicles off the road, doing renovations, providing free spaces for sports or diversion, giving people some relief from the mechanical life.
In 1994, the UN General Assembly proclaimed September 16 the International Day for the Preservation of the Ozone Layer, commemorating the date of the signing, in 1987, of the Montreal Protocol in the Vienna Convention on substances that deplete the ozone layer. Bangladesh has been observing the day since 1990 following signing of the protocol in the same year. In 1930, two French physicists Charles Fabry and Henri Buisson first discovered the ozone layer. The ozone layer is a layer of earth’s atmosphere that has relatively high levels of ozone gas. This layer is mainly located in the lower part of the stratosphere.