Morning Roundup #11

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NASA Data Indicate Ozone Layer is Recovering

A new study using NASA and National Oceanic and Atmospheric Administration (NOAA) data finds consistent evidence that Earth’s ozone layer is on the mend. Snippet from NASA announcement: -

A team led by Eun-Su Yang of the Georgia Institute of Technology, Atlanta, analyzed 25 years of independent ozone observations at different altitudes in Earth’s stratosphere, which lies between six and 31 miles above the surface. The observations were gathered from balloons, ground-based instruments, NASA and NOAA satellites.

The stratosphere is Earth’s second lowest atmospheric layer. It contains approximately 90 percent of all atmospheric ozone. The researchers concluded the Earth’s protective ozone layer outside of the polar regions stopped thinning around 1997. Ozone in these areas declined steadily from 1979 to 1997.

Read more at: Nasa Ozone Resource Page. Check out the Related Animation (7MB Quicktime).

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