Comments by "Helmuth Schultes" (@helmuthschultes9243) on "American Reacts to Why The Australian Sun Will Burn You The Hardest" video.
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Dry air passes more UV than humid air, even thin wispy clouds help. So tropics though under stronger sun suffer less problems, but long hours through mid day, spent in outdoor exposure, clear skies, with light or absent clothing ie swimming, that are certainly very common in Australia. It is worth noting excluding dark skin African people, most populations in hotter climate places, with strong sun exposure also tend to wear loose full or mostly covering clothing and/or spend most critical mid day times indoors or in saded places.
I used to makesure to get early light sunburn, but getting tanned to avoid stronger sunburns later. Only nose and lips protected by the commonly seen 'Zinc cream' white or recent times even various colours, that is an absolute sun block water resistant though messing up clothes towels and other things when accidentally smear red d ekesewhere than intended. Seen often on Australians at beaches or sports (Cricket, tennis etc). Later have used block out lotions frequently ( always). These were once SPF 10 TO 15, now available in 50 and higher rating.
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The Ozone hole has reduced but still is thinner in places, more in southern sky than northern sky.
Why the Ozone hole? What have southern nations done wrong?
WELL, NOTHING! Much blame is on Chlorinated FluroCarbons CFCs and those are in extreme majority created in NORTHERN HEMISPHERE.
Classic needs were, until altered/forbidden, used by propellant spray cans refrigerants of Air Conditioning of buildings, homes and cars home and industrial freezers and refrigerators. The use of these while present in southern regions of Earth. One may as well call it ALL Northern Hemisphere sourced, with mere percent levels actually used and released to atmosphere in the southern regions. Sadly global air currents transported it south and lesser landmasses, less vertical driven air exchanges seems to have concentrated at high altitudes of the atmosphere where these CFCs break down the Ozone layers, O3 molecules created and blocking UV radiation from the sun. Almost entirely absent from deep south between Australia and Antarctica, and even to Tasmania reach, and badly depleted over at least southern Australia and Southern America South Africa. It is the sun, outdoor loving Australian population that suffered damages caused by largely northern caused CFC induced loss of Ozone.
Fortunately the serious hole has been reduced to almost Antartic regions only, since the very bad CFC are now banned, spray can propellants changed, AC refrigerant and freezer/ refrigerator coolant altered, but sadly some replacements are barely better. But now much maintenance must pump out existing refrigerant of any type, service and refill by new types if the system still had old banned stuff. Old times many systems being serviced just exhausted the refrigerant and refilled later. Now basically only accidental leaks let these harmful gases out. Huge reduction from past levels. There will certainly be some places (China?) That are not fully compliant on modern practices and materials. It sadly remains we here paid a dear price in lives, for that BIG HOLE caused by the masses of CFCs originated from our northern populations.
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