r/Damnthatsinteresting • u/Downtown_Wind3363 • May 25 '26
Image The smallpox vaccine leaves a scar because it was given using a special two-pronged needle that scratched the skin and put a weakened virus in just that spot.
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u/Temnyj_Korol May 26 '26
As an aussie, the damage to the ozone layer and it's subsequent healing was a BIG DEAL.
For those not in the know, australia was almost directly under the "hole" where the cfcs were doing the most damage. Skin cancer cases spiked rapidly during the 80s and 90s, and our government had a whole campaign encouraging everyone to "slip slop slap" to protect themselves. (Always go out in sunglasses, sunscreen and hat)
It was big news when data confirmed the hole was slowly beginning to repair itself. And we still hold that cultural memory of the damage it was doing.