Earth's formerly thin ozone layer is recovering

Reuters ^ | August 30, 2006

[Mr_Moonlight]

Earth's formerly thin ozone layer is recovering

The New York Times is deeply saddened

[SteveMcKing]

Another theory is "change" via improved technology over many decades...

First measure something with a tree limb. Then use a ruler to increase precision. Then combine all the data, and claim that what you measured has changed over time.

[c-b 1]

Does this mean we will be able to buy R-12 referigerant again, oh I forgot, Du Pont's pattent ran out so it was outlawed.

[lmr]

First measure something with a tree limb. Then use a ruler to increase precision. Then combine all the data, and claim that what you measured has changed over time.

Fascinating, I'm being serious here.

Can you please explain to me what has changed and to what period of time are you referring to?

[Intolerant in NJ]

Earth's protective ozone layer, which was notably thinning in 1980, may be fully recovered by mid-century, climate scientists said on Wednesday...don't tell the globalwarmists - it'll ruin their day......

[SteveMcKing]

I am merely assuming that over many years, NASA's equipment (satellites and other systems) has improved, largely due to processing power but more generally their overall methods and tech capabilities.

A good and honest scientist would naturally take this into account, so I am further wondering whether they didn't.

No examples. Just a guess.

[corkoman]

Lets put all this together - the half-life of CFCs is dozens of years. Many countries but not all stopped using the bad CFCs about 8 years ago. There is still lots of CFCs in the upper atmosphere. The ozone hole is closing up.

Hmmmmm.....

Correlation is not causation - but this is lost on the ecotwits.

[DaveTesla]

Ozone is produced when oxygen is exposed to 235-320 nm of ultra violet light from the sun.
It has a half life of only 15 minutes. At longer wavelengths it is broken down.
The spectral emissions of the sun combined with the deflection caused by the earth magnetic poles controls
the production of ozone.
Chicken little strikes again.

[El Gato]

I'm tellin' the wife! Oral sex saves the ozone layer!

But only if performed by a somewhat Reubenesque young lady not your wife.

Maybe you'd best *not* tell the wife. :)

[Yardstick]

How long had CFCs been in use prior to the Montreal Protocol? My guess would be since the 1950s and probably earlier (I'm picturing 1950s cars with air conditioners and women hairspraying their beehive hairdos -- or maybe that was more like the 1960s. Anyway...).

According to the article, scientists noticed the ozone laye thinning in 1980. The Montreal Protocol was put in place in 1987. And by 1997 the thinning had stopped.

So that's the effect of thirty-something years (1950 to 1987) worth of CFC accumulation in the atmosphere being reversed in 10 years (1987 to 1997). And this assumes that CFC production came to an abrupt end in 1987 -- which, as you say, wasn't the case at all. Throw in the decades-long half life of CFCs, and it seems unlikely that the ozone could've turned the corner in a mere 10 years.

[Delta 21]

So with all the cut-back in greenhouse gasses and the ozone hole repairing itself, we should be in an all out ice age in about 75 years.

[DaveTesla]

Notice the correlation to "Global Warming".
It's all in the spectral emission of the sun.

Ps. for years I designed high frequency inverters and ozone generators. ROTFLMAO!

[FarRightFanatic]

"Algore, of course, was prominently featured lecturing us all in his condescending Algore way."



And you were able to stay awake?

[DaveTesla]

"And this assumes that CFC production came to an abrupt end in 1987"

[geopyg]

"No examples. Just a guess."

Well- they keep measuring Mt. Everest and it keeps shrinking (or growing).

[DaveTesla]

Now radiation charges from changes in the spectral emission of the sun couldn't be doing that!

[DaveTesla]

[Tzimisce]

for later

[Bittersweetmd]

ping

[pfony1]

Since CFC molecules are just TOO HEAVY to float up to the edge of the stratosphere where O2 molecules absorb ultraviolet waves to become chemically unstable O3 molecules, the "Ozone Depletion Theory" has always been junk science -- "Nobel Prize", notwithstanding. Political Correctness has not (yet) repealed the Law of Gravity.

Therefore, a REAL increase in the number of O3 molecules at the edge of the stratospere, as determined by REAL atmosperic sampling (rather than as "determined" by printouts from error-prone computer models) would tend to indicate a recent increase in solar radiation.

I wonder, is there any evidence that such an increase in solar radiation has occured? I mean other than the over-reported warming of the Earth's surface and the under-reported melting of the ice-caps on Mars?

Let me research that....