Nobel Peace Prize winner Al Gore is calling on governments to accelerate the development of a new treaty to reduce greenhouse gas emissions, suggesting that it be finalized by 2009 instead of waiting until the Kyoto pact expires in 2012. Gore emphasized the importance of not delaying action on a stronger treaty during his visit to Oslo to receive the Nobel prize, which he shares with the UN Intergovernmental Panel on Climate Change for their efforts to address climate change. Gore plans to continue advocating for an earlier treaty at the upcoming UN climate conference in Bali. The main UN climate agreement, the 1997 Kyoto protocol, was not accepted by the United States due to concerns about cost and the exclusion of developing nations from emissions cuts. Al Gore, speaking at Oslo airport, expressed the belief that the US should be leading the effort to address climate change and noted positive developments, such as cities and states adopting Kyoto provisions and business leaders calling for emissions reductions. Gore also emphasized the importance of individual choices, such as taking public transportation, in helping the environment. In 2006, Gore was mocked for arriving in a limousine at the Cannes film festival where his Oscar-winning film "An Inconvenient Truth" was being shown. The film emphasizes the need for immediate action to combat climate change.