Ozone: A 2011 Update And A History Of Screwy Computer Models
Wednesday, December 28, 2011 - 18:00
in Earth & Climate
Assuming countries continue to comply with the 1989 (enforced) Montreal Protocol, the ozone layer is expected to recover in coming decades due to declining chlorofluorocarbon (CFCs)concentrations with total recovery predicted not before 2050 or 2060. Although in the past year (from 2010 to 2011) the hole has increased in size by five million kilometers, for most of the last two decades the hole seems to have stabilized, oscillating between 20 and 25 million square kilometers. The continental United States is about 8 million square kilometers in area. read more