Quote:
Originally Posted by freebeard
So your saying that all those people who'd bought into air conditioning made the change-over to R-134a, and it didn't help?
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Here are some tiny inconsistencies with the CFC caused hole in the Ozone:
The hole was first observed in 1978 and it was assumed that man caused it, I believe it was the mid 1980s and the bans were in place.
Nearly all of the CFC were released in the northing hemisphere, but the main hole is to the south. Problem is the north and south hemispheres dont have much air flow between them.
Ozone is a by product of regular O2 when exposed to higher energy photons.
No matter how big the hole was no increase in UV was ever detected at ground level at inhabited latitudes this would seem to be true.
So Ozone is likely not nearly as important as we thought it was.
The 2 largest holes in the Ozone were observed years after CFC levels had been declining. Problem is the largest hole to date was observed in 2010 CFC levels had been on the decline since about 2004.
NASA claims it will take up to 80 years for the damage to be repaired, this was after they claimed a drop in CFCs would would reveres the damage.
Problem with that is Ozone only has a half life of like 90 minutes. So the Ozone up there is broken down and remade on a daily basis. So I understand the original reasoning behind them thinking lower CFC levels would lead to higher Ozone levels right away. Don't understand the 80 year delay. I think its just a way to buy more time before they have to admit they were wrong on just about all counts.