7 September – International Day of clean air for blue skies
16 September – World Ozone Day
World Ozone Day has been celebrated since 1994 and was established by the United Nations General Assembly. The day is mainly intended to spread awareness of the depletion of the Ozone Layer and search for solutions to preserve it. … World Ozone Day is also celebrated all around the world.
Theme – 32 Years and Healing.
18 September – World Water Monitoring Day
World Water Monitoring Day is an international education and outreach program that builds public awareness and involvement in protecting water resources around the world by engaging citizens to conduct basic monitoring of their local water bodies.
Theme – Water and Climate Change.
21 September – World Cleanup Day
Clean Up the World. World Cleanup Day is celebrated with litter cleanup and waste mapping activities spanning every time zone.
21 September – Zero Emissions Day
The purpose of Ze Day is to give the earth a ‘rest day’ – from biblical times, the idea of a day of rest at regular intervals was promoted as a good thing, and with the pace of life increasing to the point where we simply don’t slow down anymore, re-instituting the rest day concept is a very necessary. We all need a chance to shut down and reboot every now and then, and the same applies to the environment. The date of 21 September was selected to coincide with the United Nations International Day of Peace.
22 September – World Car Free Day
World Car Free Day, which is celebrated on September 22, encourages motorists to give up their cars for a day
22 September – World Rhino Day
The first Rhino Day was celebrated in in 2010 in South Africa by WWF.
23 September – Ecological Debt Day or Earth Overshoot Day
Ecological Debt Day, also known as Earth Overshoot Day, is the (claimed) approximate calendar date on which humanity’s resource consumption for the year exceeds Earth’s capacity to regenerate those resources that year. Ecological Debt Day is calculated by dividing the world bio-capacity (the amount of natural resources generated by Earth that year), by the world Ecological Footprint (humanity’s consumption of Earth’s natural resources for that year), and multiplying by 365, the number of days in one Gregorian calendar year.
26 September – World Environmental Health Day
In 2011, the International Federation of Environmental Health declared September 26 as World Environmental Health Day (WEHD). The observance aims to underscore the influence of environmental risks and issues on the health of people
Theme for 2020 – “Climate change challenges”
27 September – World Rivers Day
World Rivers Day is a day to celebrate our rivers by increasing awareness of water related issues and promoting core values associated with sustainability, conservation and river stewardship. This event will help bring a greater awareness to the rivers that we use for drinking water, industry, agriculture, residential uses and recreation. As well, it will increase awareness with historical and cultural issues.
28 September – Green Consumer Day
The Green Consumer Day is celebrated globally on 28th September every year and it highlights the problems of consumerism and its impact.
Theme for year 2020 – ” The Sustainable Consumer”