Australia's Prime Minister Kevin Rudd speaks at the Lowy Institute for International Policy in Sydney November 6, 2009. Rudd launched a spirited attack on climate sceptics on Friday, saying a vocal minority is powerful enough to threaten a global deal at next month's Copenhagen climate summit. Reuters Pictures 3 weeks ago

Australia's Prime Minister Kevin Rudd speaks at the Lowy Institute for International Policy in Sydney November 6, 2009. Rudd launched a spirited attack on climate sceptics on Friday, saying a vocal minority is powerful enough to threaten a global deal at next month's Copenhagen climate summit.