If you are of a certain age, you probably remember all that talk in the 1990s about the hole in the ozone layer. It was for a time the most pressing environmental problem in the world. Luckily we did something about it and things would have been much worse if we hadn’t. But researchers recently found another that they didn’t know existed.
This new (for us at least) hole was discovered over the tropical regions of the Earth. It remains open all year round. It somehow eluded researchers, who now think it’s likely been open since the 1980s.
#Huge #hole #ozone #layer #discovered #tropics