Scientists from NASA and the Commerce Department’s National Oceanic and Atmospheric Administration (NOAA) have confirmed the ozone hole over the Antarctic this September is not only much smaller than it was in 2000 and 2001, but has split into two separate "holes."
The researchers stressed the smaller hole is due to this year’s peculiar stratospheric weather patterns and that a single year’s unusual pattern does not make a long-term trend. Moreover, they said, the data are not conclusive that the ozone layer is recovering.
Paul Newman, a lead ozone researcher at NASA’s Goddard Space Flight Center, Greenbelt, Md., said this year, warmer-than-normal temperatures around the edge of the polar vortex that forms annually in the stratosphere over Antarctica are responsible for the smaller ozone loss.
Rob Gutro | EurekAlert!
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