Independent Online Edition > Americas : app2: "On a high-profile and bi-partisan fact-finding tour in Alaska and Canada's Yukon territory, Senators John McCain, a Republican, and Hillary Clinton, the Democratic senator for New York, were confronted by melting permafrost and shrinking glaciers and heard from native Inuit that rising sea levels were altering their lives.

'The question is how much damage will be done before we start taking concrete action,' Mr McCain said at a press conference in Anchorage. 'Go up to places like we just came from. It's a little scary.' Mrs Clinton added: 'I don't think there's any doubt left for anybody who actually looks at the science. "