Tipping Points In Env. Rhetoric: An Unscientific Survey of Nexis: After June 2002, news media’s use of tipping point in the context of global warming and climate change exploded’
'Between June 2002 and June 2005 - CC: 262; GW: 303. Between June 2005 and June 2008 - CC: more than 3,000; GW: more than 3,000* Between June 2008 and June 2011 - CC: more than 3,000; GW: 2903 Between June 2011 and June 2012 - CC: 1,348; GW; 637 Of course, the problem with tipping points is that they can never be proven wrong; only right in retrospect. And that, of course, makes citing them a wonderful rhetorical device for doomsayers'