It has been revealed the fact that there is a controversial study that states that then ozone hole is not on its way to recovery as previously believed. Check out the latest reports about the matter below.
New data on the ozone layer
A recent scientific paper suggests that the ozone hole over Antarctica is not healing as expected and may, in fact, be getting deeper. However, other researchers have questioned the validity of the study and claim that its results are misleading.
The ozone layer is a vital part of Earth’s atmosphere, located between 9 and 22 miles (15 and 35 kilometers) above the surface. This layer contains a high concentration of ozone, a form of oxygen that has three atoms instead of the usual two.
Its main function is to protect life on Earth from harmful ultraviolet rays from the sun that can cause serious damage to living organisms, including humans.
During the mid-1980s, scientists observed that the ozone layer had developed significant holes over the North and South poles. This was attributed to the presence of chlorofluorocarbons (CFCs), which react with ozone molecules and break them down, thus leading to a decrease in ozone levels.
In response, in 1987, countries worldwide joined together to sign the Montreal Protocol, which aimed to ban the use of CFCs in products such as aerosol cans, packing materials and refrigerators.
Although the ozone holes have persisted, especially above Antarctica, they have become smaller over time due to reduced levels of CFCs and unpredictable climate conditions.
Scientists have long expected that the holes will eventually heal completely. The United Nations report on ozone depletion released in January revealed that ozone levels are on track to return to pre-1980 levels by 2045 in the Arctic and 2066 in Antarctica.
A new study in the journal Nature Communications claims that the concentration of ozone in Antarctica’s ozone hole is decreasing. However, many experts criticize the study’s findings as dubious and the resulting coverage as misleading.
The study analyzed the concentration of ozone at the center of Antarctica’s ozone hole between 2001 and 2022, finding that the concentration of ozone at the heart of the hole had decreased by an average of 26% during this time.
According to Susan Solomon, an atmospheric scientist at MIT, the study fails to account for why ozone concentrations have decreased in recent years.
Check out the original data on LiveScience in order to learn more details about this.