Question: What is the population of the city which hosted a Forum for the  G8 Climate Change Roundtable?
Sentence (from "Davos"): Davos (German pronunciation ] , rarely ] ,; Romansh: "" , archaic Italian: "Tavate") is a Alpine town, and a municipality in the Prättigau/Davos Region in the canton of Graubünden, Switzerland.
Relevant evidence: No