Summary:
- The article discusses the concerning issue of the extended ozone hole over Antarctica and its potential impact on penguin and seal breeding.
- The ozone hole, which typically appears during the Antarctic spring, has been larger and more persistent in recent years, allowing more harmful ultraviolet radiation to reach the Earth's surface.
- This increased UV radiation can have detrimental effects on the breeding and survival of penguins and seals, which are important species in the Antarctic ecosystem.