[EMAIL PROTECTED] wrote: <snip>
>Indeed the failure of >ancient agricultural systems that persisted up to a thousand years >appears to be linked to natural? climate change. Check out the little >ice age for example. http://soilandhealth.org/01aglibrary/010119lowdermilk.usda/cls.html Lowdermilk: Conquest of the Land through Seven Thousand Years http://soilandhealth.org/01aglibrary/010113topsoilandciv/010113topsoil.toc.html TOPSOIL AND CIVILIZATION: Table of Contents Keith Addison Journey to Forever Handmade Projects Tokyo http://journeytoforever.org/ <snip> 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/
