For the past 15,000 years the Earth is in a interglacial time period which historically lasts about 10,000 to 20,000 years. We've read about global mountain range glacial melts, the north and south poles decreasing ice formations and CO2 stored peat bogs of Alaska (frozen) and northern Minnesota (contained in water) and other parts of the Northern Hemisphere possibly releasing CO2 along with ongoing human (or anthropogenic) greenhouse emissions. So I'd would think were gradually heading back to another ice age ?
For example, it would never have occurred to me that ice ages are characterized by relatively mild winters.-- David Goodstein BOOK REVIEW http://query.nytimes.com/search/full-page?res=9F04E4D6123AF930A15752C0A9669C8B63 Attempting to paraphrase: "Gravitational forces between the Sun and all the planets" "stretches the Earth's orbit slightly, from more circular to more elliptical, and then squeezes it back towards being circular, over a period a little over a hundred thousand years long." "But the important point about all of these astronomical influences on climate is that they do not change the total amount of heat received by the whole Earth over a whole year. All they can do is rearrange the distribution of heat between the seasons."-- John Gribbin, Chapter Eight of Almost Everyone's Guide to Science. The way the book explains it is before each ice age the forests experience drought and the plains became more arid. But recent historical evidence says concentration of carbon dioxide in the atmosphere is 0.28 per cent or 280 Parts Per Million and now were at 350 ppm a increase of 25 per cent attributable to human burning of fossil fuels and deforestation (includes all nations ? ) which leads me to think were storing heat at the earths surface delaying or increasing the inevitable. ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4. No Minimums. FREE Money 2002. http://us.click.yahoo.com/BgmYkB/VovDAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
