Hole in the sky

Hole in the sky

Fig. 4.20 . A satellite map showing an exceptionally low concentration of ozone, called the ozone hole, which forms above the South Pole in the local winter. In October 1990 it had an area larger than the Antarctic continent, shown in outline below the hole. Eventually spring warming breaks up the polar vortex and disperses the ozone-poor air over the rest of the planet. (Courtesy of NASA.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University