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Climate changes
The WMO 2022 report delivers reassuring news. The concentration of ozone-depleting substances continues to decline, and the ozone hole over Antarctica shows a shrinking trend. This is not merely a technical achievement, but evidence that sound global policies can repair environmental damage.
The ozone layer itself is a thin layer of gas in the stratosphere that absorbs harmful UV-B radiation. This radiation can increase the risk of skin cancer, reduce crop productivity, and disrupt marine organisms such as phytoplankton, which form the foundation of the food chain.
Ozone damage is mainly caused by ozone-depleting substances such as CFCs. When these substances rise into the stratosphere, UV radiation breaks them apart and releases chlorine atoms that then destroy ozone molecules.
Simply put, a single chlorine molecule can destroy thousands of ozone molecules. As a result, ozone concentrations declined very rapidly during the 1980s. This situation pushed the world to agree on the Montreal Protocol, one of the most successful environmental agreements.
There are several key factors that have enabled this recovery:
This ozone recovery also demonstrates that when science is used as the foundation for policy, the results can be highly significant.
Substitutes for CFCs such as HFCs do not damage the ozone layer, but they have a high global warming potential. This means that even though the ozone shield is improving, the challenge of climate change continues.
This highlights the need to understand the links between chemical substances, the atmosphere, and the climate system. Ozone recovery is one chapter of success, but reducing carbon emissions remains the next major task.
Learning from the success of ozone recovery, collective action always begins with simple decisions. You can:
The Jejakin program helps you plant trees and restore ecosystems. Trees absorb carbon and enhance environmental resilience, while also providing long-term benefits for air quality.
The recovery of the ozone layer shows that environmental damage can be repaired when science, policy, and society work in harmony. Earth’s shield is beginning to recover, but safeguarding the planet’s sustainability still requires your involvement. Small decisions today can create a major impact on the future.
Jejakin’s green programs combine high-tech monitoring, biodiversity restoration, and community-led initiatives to deliver powerful, sustainable change across ecosystems.
