over 10,000 papers for this search term according to the ISI database of journal articles"   ^ Johnson, Brad (3 August 2010). "Wally's World" . Foreign Policy . http://www.foreignpolicy.com/articles/2010/08/03/wallys_world . Retrieved 10 August 2010 .   ^ Wallace Broecker, "Climatic Change: Are We on the Brink of a Pronounced Global Warming?" Science,