[nostromo]

The classic example of this is the 'manure crisis' at the end of the 19th century. Since commerce and transportation over land and in cities usually required horses at that time, a simple calculation in 1894 by the Times of London forecasted that every street in London would be covered in 9 feet of horse manure by 1950. http://ibloga.blogspot.com/2010/04/weve-recently-had-some-di...