Next US President Urged To Outline Climate Policy NORWAY: April 10, 2008 OSLO - The next US president should signal a shift in global warming policies before taking office to help a UN meeting in Poland in December take steps to work out a new climate treaty, Poland said on Wednesday. Under President George W. Bush, the United States is the only rich nation opposed to the UN's Kyoto Protocol capping greenhouse gas emissions until 2012. Many nations expect a shift under Bush's successor, whether a Democrat or a Republican.