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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: longnshort who wrote (6205)	4/7/2006 11:58:19 AM
From: average joe	Read Replies (1) \| Respond to of 36917

A geomagnetic reversal is a change in the orientation of Earth's magnetic field such that the positions of magnetic north and magnetic south become interchanged. These events, which typically last a few hundred to a few thousands years, often involve an extended decline in field strength followed by a rapid recovery after the new orientation has been established. Over very long periods, geomagnetic reversals seems to have occurred with a frequency of 1 to 5 events per million years; however, this duration is highly variable. During some periods of geologic time (e.g. Cretaceous long normal), the Earth's magnetic field is observed to maintain a single orientation for tens of millions of years. Other events seem to have occurred very rapidly, with more than one reversal in 50,000 years. The last reversal was the Brunhes-Matuyama reversal approximately 780,000 years ago. en.wikipedia.org

To: longnshort who wrote (6205)	4/7/2006 12:05:30 PM
From: maceng2	Respond to of 36917

This link is a month old. knoxstudio.com The next 20 yrs are going to be a peak in solar activity. Problems expected. ======================================================== Re: nukes. The safety record of reprocessing plants has going to have to be upgraded. The UK's record is atrocious. It probably better handled by private industry rather then government sponsored. The "Thorp" reprocessing plant is on it's third name change now. The old names like "Sellafield" were too well known to the public for nuclear accidents, illegal releases of radioactivity, and plain incompetence. Message 21409114 The safe disposal of nuclear waste, and decommisioning of old nuke power plants needs to be properly planned for too. So far the UK has just built new nuke plants next to the old ones that are now powered down. I think there are possibilies for safe long term storage/disposal for nuclear waste. The nuclear power industry and the anti-nuclear movement are going to have to sit down a thrash out an agreement. No point in doing this "Brent Spar style".. en.wikipedia.org