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The Ozone Hole is Shrinking! Hope for Climate Change

Scientists have confirmed that the hole in the ozone has been steadily shrinking following the historic United Nations treaty — the Montreal Protocol —  to ban chlorofluorocarbons, or CFCs, in 1989.ozone-hole-nasa.jpg__1500x670_q85_crop_subsampling-2

The fact that the ozone is healing at all is a powerful testament to what can be achieved if the whole world comes together and every country sticks to its word. The Montreal Protocol was the first time that the UN unanimously ratified a treaty and it gives scientists hope that a similar compromise can be achieved on climate change.

Back in the early 20th century, CFCs were introduced as an alternative to toxic substances like ammonia. They started to be used in common household amenities like refrigerators and air conditioners.  Read more...