2nd April 2009, 9:13 PM
Part of the trend may have even been in effect before mankind started adding to it. There ARE natural cycles. However, humans have had a noted effect in making it worse.
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." ~ Charles Babbage (1791-1871)