On Sat, Mar 21, 2009 at 06:19:11PM +0000, mike wilson wrote: > Bob W wrote: > >> I think I'd trade that. Cars pollute far more than horses do, and at least >> horse-shit helps the roses. Cars also pollute visually because of the > > Hmmmm. In the late 1980s, one of the London hospitals was having > problems with corrosion of the cast iron pillars supporting the > building, sited under what had been the main entrance. Analysis of the > corroding fluid showed that its main constituent was horse urine......
Quite. One of the benefits of the "horseless carriage" was the elimination (sic) of the problem of horse effluent on the streets. While the total amount of pollution from cars and trucks today may well exceed that from horses a century ago that's mostly due to the vast increase in travel. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
