Nobel Peace Prize winner Al Gore is calling on governments to speed up the development of a new treaty to reduce greenhouse gas emissions, suggesting that it be completed by 2009 instead of waiting until the Kyoto pact expires in 2012. Gore, who will collect the Nobel prize in Oslo on Monday, emphasized the importance of not delaying action on a stronger treaty to combat climate change. The United States rejected the 1997 Kyoto protocol, which is the main UN climate pact that binds 36 nations to reduce emissions. They argued that it would be too costly and unfairly did not include developing nations in the emission cuts. Former Vice President Gore stated that the US should be leading in this challenge, and that many are working hard to change US policies. He mentioned a shift in attitude in the US, with over 700 cities and many states adopting Kyoto provisions, as well as 150 US business leaders calling for carbon emissions cuts. Gore expressed optimism about progress being made, and highlighted the importance of making environmentally friendly choices, such as taking the train, like he did in Oslo. Gore faced criticism in 2006 for being mocked for taking a limousine to a screening of his award-winning film "An Inconvenient Truth" at the Cannes film festival. The film emphasizes the need for immediate action to combat climate change.