If I remember correctly, the problem with that element is that it is, I do not quite remember, but perhaps 150 times more powerful than CO2, am I right? These are products that emit very powerful greenhouse gases. We wanted to do all we could to eliminate the use of these elements, these coolants, because they are so strong and so destructive. We attempted, through the Kyoto Protocol, to have them eliminated worldwide. There was obviously the famous plant in China that was producing them, and we paid an awful lot of money for it to be shut down. Politically speaking, it makes sense to eliminate a source of such powerful greenhouse gases. That is perhaps an illustration of Mr. Park's second principle, given that this product does not occur naturally and that nature is incapable of integrating it, absorbing it, etc.
That is about all I am able to say in that regard.