The ozone layer, found in the stratosphere (15–35 km above Earth), may be thin, but it plays a giant role in sustaining life. It absorbs nearly 97–99% of the Sun’s harmful ultraviolet (UV-B) radiation, shielding humans, animals, plants, and marine life.
Why Ozone Matters for Us:
Human Health: Prevents skin cancer, cataracts, and immune system suppression.
Agriculture: Protects crops from reduced yield due to UV exposure.
Ecosystems: Safeguards plankton (the foundation of the marine food chain).
The Threat:
Human-made chemicals like CFCs (chlorofluorocarbons), halons, and carbon tetrachloride once caused severe thinning of the ozone layer — especially over Antarctica, where the infamous “ozone hole” was detected in the 1980s.
The Turning Point:
The Montreal Protocol (1987), signed by 197 countries, banned many ozone-depleting substances. It is considered the most successful environmental treaty in history. Today, scientists confirm that the ozone layer is gradually healing and could return to 1980 levels by mid-21st century.
But the Work Isn’t Done:
Avoiding ozone-depleting products (aerosols, outdated coolants).
Supporting eco-friendly technologies.
Raising awareness so the progress isn’t reversed.
Interesting Fact:
Without ozone protection, even 15 minutes under the Sun could cause severe burns. Ozone is literally a life-saver we rarely see or talk about.
The Bigger Picture:
Ozone protection also links to climate change, since many ozone-depleting gases are also powerful greenhouse gases. Fighting for ozone is fighting for the planet’s future.
Do you think enough is being taught in schools/colleges about ozone and environmental awareness, or is it still treated as a one-day campaign on Ozone Day (Sept 16)?
MBH/AB