Antarctic: 2021’s massive ozone hole finally closes

The video discusses the changes in Earth's ozone layer, focusing on the 2021 Antarctic ozone hole, which was the 13th largest since 1979. It explains the causes of the ozone hole, including colder winters in the Southern Hemisphere and chemical reactions involving chlorine and bromine from human-made compounds. These reactions occur in the stratosphere and lead to ozone depletion when sunlight returns to Antarctica. The video also highlights the impact on southern countries, such as New Zealand, which often issue UV radiation warnings during their summer months.

When does sunlight hit the Antarctic, triggering ozone destruction?

What impact does the ozone hole have on southern countries like New Zealand?