http://www.nytimes.com/2010/12/28/science/28tierney.html?_r=2&ref=scienceDude pulls a Julian Simon and bets an energy pessimist/malthusian in 2005 that oil prices will not have tripled by 2010 (on average over the year 2010).
Dude wins bet, but malthusians still get the press.
No matter how many bogus predictions they make that are proved false, goobers like Paul Ehrlich pay no price professionally or to their reputation in the chattering classes.
Also, discount any of the "peak oil" boneheads. They get the press, but reality on the ground does not favor their theories.