97% of what?

Over and over we hear about how 97% of the climate scientists believe in climate change. Where did the number come from? 

" The most highly-cited paper supposedly found 97 per cent of published scientific studies support man-made global warming. But in addition to poor survey methodology, that tabulation is often misrepresented. Most papers (66 per cent) actually took no position. Of the remaining 34 per cent, 33 per cent supported at least a weak human contribution to global warming. So divide 33 by 34 and you get 97 per cent, but this is unremarkable since the 33 per cent includes many papers that critique key elements of the IPCC position."
see: http://business.financialpost.com/fp-comment/climate-change-consensus-among-the-misinformed-is-not-worth-much

The article also says: "Barack Obama’s website (barackobama.com) says “97 per cent of climate scientists agree that climate change is real and man-made…Find the deniers near you — and call them out today.” TWW assumes that means he is going to send the drones but TWW is ready (see the previous post on drones to learn how:).