Ozone, The Hole is back! Today's News.. The Ozone hole is larger in 2025! Sunday Nov. 30th. 2025. I remember in Chemistry class being taught that Ozone (O 3 ) was formed in the upper atmosphere by Cosmic Rays 1 or Alpha Particles from the Sun bumping into Oxygen molecules (O 2 ) according to the equation 3O 2 ⇋ 2O 3 , a reversible reaction. Reactive and unstable, Ozone decays pretty soon, back into O 2 , or an oxide of Nitrogen (NO x ), there being plenty of Nitrogen around up there. So imagine my surprise when I learned that in America Ozone is believed to come from automobile exhaust pipes in places like Los Angeles. When, in the ‘80s a sharp eyed New York Times reporter first spotted the ‘Ozone Hole’ lurking over Patagonia in late October or November I was curious. ...
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Showing posts from November, 2025