GLOBAL WARMING.

Reports that a consensus is growing among scientists, governments and business that action must be taken to combat climate change. Lawsuit from New York State Attorney General, Eliot Spitzer, and other attorneys general to force the nation's largest utility companies to reduce emissions; Plan of the European Union to impose mandatory caps on carbon dioxide and other gasses; Additional plan which would allow the sale of rights to emit carbon; Expectation that Russia will sign the Kyoto Protocol which would make carbon dioxide reductions mandatory by the 124 countries that have accepted the accord; Rejection of the Kyoto Accord and other mandatory curbs by U.S. President George W. Bush; Companies that are already making changes; Need of leadership from governments; How the trading of carbon credits would be performed; Opponents who are taking a wait and see attitude about global warming. INSETS: HOW TO TRADE CARBON CREDITS;THE EARTH'S CONVEYOR BELT.