Ozone Hole Has Shrunk by 4 Million Square Kilometers Since 2000

US National Centre for Atmospheric Research( NCAR) scientists Doug Kinnison and Michael Mills are co-authors on a new study published in the journal Science. This is an excerpt from a news release by the Massachusetts Institute of Technology (MIT), a University Corporation for Atmospheric Research (UCAR) member institution, about the study.

June 30, 2016 | Scientists at MIT and elsewhere have identified the “first fingerprints of healing” of the Antarctic ozone layer, published today in the journal Science.