Saturday evening rambling. I came across a blog which pointed to another article on global warming, concluding that global warming was caused by human activity. And the blogger asks what more would it take to convince the skeptical. Made me realize that there are parallels between that, the depletion of the ozone layer, the potential harmful effects of WSDs, or the viability of SFNs. It's all comes down to the same thing: to convince me, one way or the other, just show me the mechanism. Don't throw words out, or derived statistics, or prose about "wouldn't it be wonderful if ... ." Instead, show me how. The ozone depletion problem was convincingly demonstrated by the existence of human-made CFCs in the upper atmosphere, and their effect on the ozone layer up there. That showed we could fix the problem. The potential for harm from WSDs is even more easily demonstrated. The constraints which restrict SFNs are also easily demonstrated. All the cheap verbiage about how wonderful SFNs might be cannot change the facts that limit how they can be deployed. And all the proposed SFN configurations that do not take the constraints into account are just fairy tales. Similarly, human involvement in global warming might very well be true. Possibly, the stats show that somehow somewhere, we are exacerbating it. But obsessing over CO2, when we contribute such a small fraction of that gas compared with the rest of nature? Show me what we are doing that causes harm, then, so we have a hope of fixing it. Articles that wring hands about the harm caused by global warming do not by themselves show that we cause it or how we can fix it. Bert _________________________________________________________________ Stay up to date on your PC, the Web, and your mobile phone with Windows Live http://clk.atdmt.com/MRT/go/119462413/direct/01/ ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.