LA Times: As delegates from nearly 200 countries began their final week of meetings here on global warming, U.S. representatives today insisted on removing firm targets for reducing carbon dioxide from draft guidelines for negotiating a successor to the 1997 Kyoto Protocol, set to expire in 2012. The guidelines, which will provide a "road map" for negotiations that will begin next year on a new climate treaty, now call for industrialized countries to achieve a 25% to 40% reduction in …