The Antarctic ozone hole is recovering and is back to near average levels.
Scientists at NOAA say the size of the ozone hole is now only slightly larger than the 10-year average. The researchers also say the ozone hole is expected to get even smaller and then eventually disappear after the year 2070.
The ozone layer protects life on earth by blocking harmful ultraviolet-B rays from the sun. UV-B can cause skin cancer and cataracts in humans, harm plant life, and degrade certain materials.
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