For decades a “hole” in the ozone layer opens over the Antarctic each year. Harmful levels of UV light can make their way toward the Earth’s surface impacting ecosystems in the far Southern Hemisphere. You can follow the rapid opening and gradual closing of the hole at NASA’s “Ozone Hole Watch“. Here you’ll find recent high resolution images, daily and monthly average animations and graphs showing the progress of this year’s ozone hole.
The Physical Environment link: The Stratosphere