The consumption of products that reduce the ozone layer has declined in just over 20 years to almost disappear. Therefore, as estimated, in 2050 the ozone layer will have recovered its initial level over most of the Earth.
Thus, about 25 million cases of cancer will have been avoided.
Thanks to the launch of the Montreal Protocol, in 1987, the ozone hole began to close. In fact, the majority of industrial objectives that were intended to restore the ozone layer have been achieved more quickly than expected.
At this rate, harmful substances will gradually be degraded until their initial level is recovered in 2050. In Antarctica, this will occur later. This has brought many immediate benefits, as explained Jacques Lecomte in The world is going much better than you think!:
- 20.6 million fewer cases of skin cancer until 2060.
- 1 to 3 million fewer deaths from skin cancer until 2060.
- 129 million fewer cases of cataracts until 2060.
However, the work is not finished. The hydrofluorocarbons (HFC), substances that replace ozone-destroying products, produce the greenhouse effect, forcing industries to conduct new research to use other products.