On Mar 10, 1:53 am, "NB00Z" wrote:
"Tom Gardner" wrote in message

et...

Since CFCs were banned, the ozone hole is fixed!

Oh really????

Ozone Hole Bigger Than Ever

SCIENTIFIC CONSENSUS ON MAN-MADE OZONE HOLE MAY BE COMING APART


You are a liar. That CFCs damage the ozone layer is a proven
scientific fact.

Reality aces the knowalls again. And the antarctic "ozone hole" has
reached record sizes in recent years, DESPITE the abolition of CFCs.

"The ozone hole over Antarctica has shrunk 30 percent [ in 2007] as
compared to last year's record size. "

The
latest reading is not as big as the record 28 million sq km holes that
developed during 2000, 2003 and 2006 but is close to it. When will they
admit that the whole CFC scare showed only how little they knew?


When will you stop lying.

As the world marks 20 years since the introduction of the Montreal
Protocol to protect the ozone layer, Nature has learned of experimental
data that threaten to shatter established theories of ozone chemistry.

Lie.

If the data are right, scientists will have to rethink their
understanding of how ozone holes are formed and how that relates to
climate change.


Which is unrelated to CFCs causing the holes.

Long-lived chloride compounds from anthropogenic emissions of
chlorofluorocarbons (CFCs) are the main cause of worrying seasonal ozone
losses in both hemispheres. In 1985, researchers discovered a hole in
the ozone layer above the Antarctic, after atmospheric chloride levels
built up. The Montreal Protocol, agreed in 1987 and ratified two years
later, stopped the production and consumption of most ozone-destroying
chemicals. But many will linger on in the atmosphere for decades to
come. How and on what timescales they will break down depend on the
molecules' ultraviolet absorption spectrum (the wavelength of light a
molecule can absorb), as the energy for the process comes from sunlight.
Molecules break down and react at different speeds according to the
wavelength available and the temperature, both of which are factored
into the protocol.

So Markus Rex, an atmosphere scientist at the Alfred Wegener Institute
of Polar and Marine Research in Potsdam, Germany, did a double-take when
he saw new data for the break-down rate of a crucial molecule,
dichlorine peroxide (Cl2O2). The rate of photolysis (light-activated
splitting) of this molecule reported by chemists at NASA's Jet
Propulsion Laboratory in Pasadena, California1, was extremely low in the
wavelengths available in the stratosphere - almost an order of magnitude
lower than the currently accepted rate. "This must have far-reaching
consequences," Rex says. "If the measurements are correct we can
basically no longer say we understand how ozone holes come into being."
What effect the results have on projections of the speed or extent of
ozone depletion remains unclear.


He did NOT say CFCs were not the culprit.

The rapid photolysis of Cl2O2 is a key reaction in the chemical model of
ozone destruction developed 20 years ago2 (see graphic). If the rate is
substantially lower than previously thought, then it would not be
possible to create enough aggressive chlorine radicals to explain the
observed ozone losses at high latitudes, says Rex. The extent of the
discrepancy became apparent only when he incorporated the new photolysis
rate into a chemical model of ozone depletion. The result was a shock:
at least 60% of ozone destruction at the poles seems to be due to an
unknown mechanism, Rex told a meeting of stratosphere researchers in
Bremen, Germany, last week.


Yes, mechanism. Not cause. Learn what terms mean in science some
time.

Other groups have yet to confirm the new photolysis rate, but the
conundrum is already causing much debate and uncertainty in the ozone
research community.

I see. One unconfirmed report (which you misinterpret) and you
trumpet "scientific consensus coming apart." You really are a total
blooming idiot.

"Our understanding of chloride chemistry has really
been blown apart," says John Crowley, an ozone researcher at the Max
Planck Institute of Chemistry in Mainz, Germany. "Until recently
everything looked like it fitted nicely," agrees Neil Harris, an
atmosphere scientist who heads the European Ozone Research Coordinating
Unit at the University of Cambridge, UK. "Now suddenly it's like a plank
has been pulled out of a bridge." ......

http://www.nature.com/news/2007/0709...l/449382a.html

--

Warmest Regards

Bonzo

". researchers at the Max Planck Institute for Solar Research in Germany
report the sun has been burning more brightly over the last 60 years,
accounting for the 1 degree Celsius increase in Earth's temperature over
the last 100 years."http://ibdeditorial.com/IBDArticles.aspx?id=287279412587175