Exxon cuts ties to global warming skeptics

Oil major Exxon Mobil Corp. is engaging in industry talks on possible U.S. greenhouse gas emissions regulations and has stopped funding groups skeptical of global warming claims — moves that some say could indicate a change in stance from the long-time foe of limits on heat-trapping gases.

Exxon, along with representatives from about 20 other companies, is participating in talks sponsored by Resources for the Future, a Washington, D.C., nonprofit. The think tank said it expected the talks would generate a report in the fall with recommendations to legislators on how to regulate greenhouse emissions.