Antarctica’s Extended Ozone Hole Raises Concerns For Penguin And Seal Breeding   | Online Marketing Tools | Scoop.it
(elnavegante/Getty Images) Over the last 25 years, the ozone hole which forms over Antarctica each spring has started to shrink. But over the last four years, even as the hole has shrunk it has persisted for an unusually long time. Our new research found that instead of closing up during November it has stayed open well into December.…