https://www.stuff.co.nz/climate-change/350258857/sunburnt-seals-and-penguins-antarcticas-ozone-layer-worst-its-been-1970s
Thinking is that the Tonga volcano spewed out sulphates which broke down the ozone layer in the Southern hemisphere.
The world will have to start stopping all these volcanos erupting.
The second cause if bushfires. We are starting to understand that forests
fires of the "controlled" type are part of the eco system and it stops the
fire load building up.
Of course we have the climate change is responsible and we must do more to reduce the CO2.
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