Bad news after good? –Recent Arctic stratospheric ozone losses

Rajendra Shende, Head of OzonAction, UNEP speaks to NASA scientist and co-chair of the  Montreal Protocol Scientific Assessment Panel Dr. Paul Newman on 8th April 2011 The breaking news of record losses of the stratospheric ozone over the Arctic and northern Europe, thereby exposing large populations to the risk of elevated ultraviolet radiation (UV) is quite unsettling and disquieting.  Rajendra Shende requested Dr. Newman to briefly explain for the benefit of the National Ozone Units around the world two recent and apparently contradictory observations relating to levels of stratospheric ozone depletion. One report appeared to be very positive; the other seemed to be a serious warning: The loss of stratospheric ozone over Antarctica in September 2010 was one of the lowest on record. A record loss of stratospheric ozone was recorded over the Arctic in March 2011. The interview: Mr. Shende: "How should National Ozone Officers engaged in implementation of the Montreal Protocol, which is...
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