National
Ozone Day: A Shared Sky, A Shared Duty
PHNOM PENH — Sept. 16, 2026: Every September 16, the world pauses to mark the International Day for the Preservation of the Ozone Layer — the anniversary of the Montreal Protocol, signed in 1987.
The ozone layer sits high above the Earth and shields all life from harmful ultraviolet radiation. When scientists discovered in the 1980s that certain chemicals were damaging it, nations came together to act.
Cambodia has walked that path too. Since joining the Protocol in 2001, the Kingdom has ended the use of the most damaging substances and is steadily reducing the rest, while supporting greener cooling technology for the future.
The recovery of the ozone layer is slow, but it is real — and it belongs to every country that chose to protect it.
For Cambodia, the message of the day is simple: the sky above the Kingdom is shared with the world, and caring for it is a duty shared as well.
Source: Ministry of Environment
UNEP Ozone Secretariat
Reported by The Khmer Today