A. Currently, the ozone hole is not as large as it was in 2011, but it is larger than it was in 2010. The ozone hole refers to the rapid depletion of stratospheric ozone over Antarctica. This ozone is located in a layer about 15 miles above the surface. Human activity has contributed to the deterioration of the ozone layer by adding chlorofluorocarbons, or CFCs, to the atmosphere.
Office of Strategic Communication