frank theriault wrote: > On 7/3/07, P. J. Alling <[EMAIL PROTECTED]> wrote: > >>The Indians, (Native Americans to the PC crowd), practiced slash and >>burn agriculture. There wasn't nearly that much Virgin Forest. > > > It's unlikely that the Native American population in what is now North > America would have been much more than 10 million (most estimates are > lower) at the time of Columbus (not that he "discovered" North > America, but his arrival is a convenient point to freeze time). > > I doubt that in an area the size of present-day Canada and US, such a > population (not all of whom were practicing slash and burn > agricultire) would have had a serious impact on the size of the > forests...
Lightning and volcanoes were probably more significant. In that context. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
