Subj : Re: Global Warming To : richardw From : Finnigann Date : Wed Oct 12 2005 01:03 am -=> richardw wrote to Finnigann <=- ri> Re: Re: Global Warming ri> By: Finnigann to richardw on Tue Oct 11 2005 01:16 am > > Maybe, Maybe not. But they don't disput that it > > happening. > > ri> I don't necessarily believe it's not happening. > > Oh, *now* you're agnostic... ri> I just don't believe it to be man-made. But it might be man-triggered. > > ri> Huh? Support for what? > > You've forgetten your position already? ri> You apparently never understood my position... as is so common when it ri> differs from your own. That's an understatement. But you hardly ever go into details just rant on about what you don't want to happen... I do get lost sometimes. > 4.5 Billion years in one form or another. ri> Sounds familiar. Copyrighted by Carl Sagan ri> OK... here's something for you you ponder. ri> During most of the last 1 billion years the globe had no permanent ice. ri> (NOTE - no permanent ice.) ri> However, sometimes large areas of the globe were covered with vast ice ri> sheets. These times are known as ice ages. ri> Ice Ages are intervals of time when large areas of the surface of the ri> globe are covered with ice sheets (large continental glaciers). The ri> term is used to describe time intervals on two very different scales. ri> It describes long, generally cool intervals of Earth history (tens to ri> hundreds of millions of years) during which glaciers waxed and waned. ri> The term also describes shorter time periods (tens of thousands of ri> years) during which glaciers were near their maximum extent. These ri> shorter intervals are also known as "glaciations." It has something to do with the configuration of the land masses. One big mass and you don't get the same seasonal changes etc. ri> In addition, the term "Ice Age" is sometimes used to refer to the last ri> major glaciation that occurred in North America and Eurasia. ri> Many glacial advances and retreats have occurred during the last ri> billion years of Earth history. These glaciations are not randomly You are the first person to tell me this. Most data I have ever read about is in the millions of years time frame. ri> distributed in time.Instead, they are concentrated into four time ri> intervals. Large, important glaciations occurred during the late ri> Proterozoic (between about800 and 600 million years ago), during the ri> Pennsylvanian and Permian (between about 350 and 250 million years ri> ago), and the late Neogene toQuaternary (the last 4 million years). ri> Somewhat less extensive glaciations occurred during parts of the ri> Ordovician and Silurian (between about 460 and 430 million years ago). ri> During each of these periods, many glacial advances and ri> retreatsoccurred. For example, over 20 glacial advances and retreats ri> have occurred during the last 2 million years. ri> If "ice age" is used to refer to long, generally cool, intervals during ri> which glaciers advance and retreat, we are still in one today. Our ri> modern climate represents a very short, warm period between glacial ri> advances. ri> http://www.museum.state.il.us/exhibits/ice_ages/ ri> Hmm... That's all very interesting. It would seem we're still in a ri> sort of Ice Age. It would also seem to be a sort of cycle. Gee, I ri> hope you are right about this Global Warming trend. I hate ice. It's ri> scary riding my motorcycle on ice... I refuse to do it. > > The Duke analyses examined solar changes over 22 years > > versus 11 years used in previous studies. The cooling > > effect of volcanoes and cyclical shifts in ocean > > currents can have a greater negative impact on the > > accuracy of shorter data periods. > > > > ri> What makes you think we could EVER do anything about it? > > What makes you think we can't do SOMETHING about it. Maybe not enough, > but something is better than nothing. (in this case) ri> Why do you want to alter the normal climatic cycles of the planet? ri> You're really starting to scare me. People like you are just way out ri> of control. I'm not advocating global climate control, such a thing is impossible at our level of technology (so far). I just don't want us to trigger one prematurely, is all. ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ³ "We live in a society exquisitely ³ dependent on science and technology, ³ in which hardly anyone knows anything ³ about science and technology." ³ - Carl Sagan .... You're just jealous because the voices are talking to me, not you! --- MultiMail/Win32 v0.46 þ Synchronet þ Bits-N-Bytes BBS Onehellofa BBS bnb.dtdns.net .