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bluesdave · 10-19-2006, 07:48 PM

I made sure when I posted those links that I hi lighted the page that discusses both sides of the argument. The bulk of scientific evidence supports CFC's role in ozone depletion - that is why so many sites mention them. I have a background in chemistry, but no direct experience in CFCs and ozone depletion. Just like all of you I have to read the articles and reach an opinion. I admit that I was originally sceptical, but when so many people have backed the theory with experimental evidence (note: I am not saying that this *is* proof), then I must accept what they say. I do not have the resources to do the experiments myself.

Here is an Aussie site that also explains OD very well.

Note that the CSIRO started measuring ozone levels in 1956, but the hole as such was not discovered until the 1970s. Dobson's work is well recognised, and appreciated, but research has continued, and new light has been shed on the topic.

Science does not stand still. New evidence appears constantly, and opinions change. Hippikos, you are entitled to hold onto your opinion, and you have obviously gone out of your way to do your own reading on the topic. Even though we disagree, I tip my hat to you for showing an interest.

Sorry Bruce, I should say the same to you. Please don't feel left out!

10-19-2006, 07:48 PM	#186
bluesdave Getting older every day Join Date: Feb 2004 Location: Australia Posts: 308	I made sure when I posted those links that I hi lighted the page that discusses both sides of the argument. The bulk of scientific evidence supports CFC's role in ozone depletion - that is why so many sites mention them. I have a background in chemistry, but no direct experience in CFCs and ozone depletion. Just like all of you I have to read the articles and reach an opinion. I admit that I was originally sceptical, but when so many people have backed the theory with experimental evidence (note: I am not saying that this is proof), then I must accept what they say. I do not have the resources to do the experiments myself. Here is an Aussie site that also explains OD very well. Note that the CSIRO started measuring ozone levels in 1956, but the hole as such was not discovered until the 1970s. Dobson's work is well recognised, and appreciated, but research has continued, and new light has been shed on the topic. Science does not stand still. New evidence appears constantly, and opinions change. Hippikos, you are entitled to hold onto your opinion, and you have obviously gone out of your way to do your own reading on the topic. Even though we disagree, I tip my hat to you for showing an interest. Sorry Bruce, I should say the same to you. Please don't feel left out! __________________ History is a great teacher; it is a shame that people never learn from it.