Please note. All these itmes can be found on the internet.
Google any sentence:

One thing that happened last time re exploitation.
The so called fluorocarbon used for refrigeration...
Replaced by a more safe refrigerant that would help the ozone layer.
The fact that DuPont's patent on this manufactured gas was about to run out
was a coincidence of course.
From Wikipedia
The Ozone depletion layer has been increasing, or shown no sign of recovery
of course.
The year 2008 saw the longest lasting hole on record, which remained until
the end of December.[89] The hole was detected by scientists in 1985[90] and
has tended to increase over the years of observation. The ozone hole is
attributed to the emission of chlorofluorocarbons or CFCs into the
atmosphere, which decompose the ozone into other gases


From Duponts site
DuPont led the industry in the phaseout of CFCs and transition to
environmentally acceptable alternatives. At the time, DuPont estimated that
more than $135 billion of existing equipment in the United States alone
depended on CFCs. In January 1991, DuPont was the first company to launch a
family of refrigerant alternatives that met performance, safety and
environmental criteria and could be used in existing as well as new
equipment, thus minimizing the transition cost to thousands of businesses
and consumers around the world. The company invested more than $500 million
to develop and commercialize CFC alternatives. CFCs accounted for less than
2 percent of the company's revenues.

Not from their site, based on suspicion...There is considerable evidence
that the ban on R -12 is based on bogus information and orchestrated by
Dupont because their patent on Freon was running out. It's unlikely the
decision will ever be reversed but it's just one more example of how big
business is wagging the dog.

PS the company is amongst the "most trustworthy" in the world. Er, if you
can fake sincerity you've got it made?
Funny that they are also in the seed business...
From the page: "DuPont today announced it is commercializing soybean
varieties developed using a technology that increases yields by as much as
12 percent per acre. DuPont seed business Pioneer Hi-Bred is introducing
five varieties with the technology for 2008 planting, pending wide-area
product advancement trial results. It wound be gene modification would it?




"Jock" wrote in message
...
the planet has been warming up since the peak (trough) of the last ice
age -
cashing in on a natural cycle? Who'd a thought?


"David Hare-Scott" wrote in message
...
: Jonno wrote:
: