** FILE ** Then-Vice President Al Gore delivers an opening speech of the ministerial conference of the United Nations Framework Convention on Climate Change in Kyoto, western Japan, in this December 8, 1997, file photo. The American vice president was an environmentalist and the U.S. Congress was conservative. China and India were on the fringes of the climate change debate. And big business said going green would strangle industry. The Kyoto global warming pact, signed 10 years ago on Tuesday, was brokered under vastly different circumstances from those facing negotiators at a U.N. climate conference this week in Bali as they map out the agenda for a successor agreement. (AP Photo/Katsumi Kasahara, FILE)