SCEINCE

How humanity has avoided a hot future: Excluding CFCs

Everyone should be happy that the Montreal Protocol is gradually removing CFCs.

An alarming discovery was made in the 1970s. Aerosol cans, CFCs and refrigerants caused a a huge hole in the ozone layer.

This area was discovered at the South Pole in the spring of the South Hemisphere. This hole was getting bigger every year, and if it was allowed to continue, the Earth could lose its force field against UV radiation.

This would lead to many people getting skin cancer and many other bad consequences. Fortunately, the international community chaired the scientific councils and drafted an agreement that limited the problem.

In 1987, the Montreal Protocol entered into force, gradually abolishing the use of CFCs. And it works like a charm!

Now, slowly but surely the ozone layer closes again and the hole is expected to be completely healed by the middle of the 21st century. In essence, the Montreal Protocol avoids a nightmarish situation in which the planet would be flooded with UV radiation.

How was this agreement so successful? What were the main sides behind it? What has happened to the agreement now and is it renewed every year? This video answers all these and more questions.





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