UPDATE 3-Oil bosses fight 'bad guy' image ahead of climate talks
* Oil firm CEOs call for effective deal at climate talks
* Fail to agree on carbon pricing system
* Promise to limit gas flaring, stop short of setting goals (Recasts, updates throughout)
By Ron Bousso and Bate Felix
PARIS, Oct 16 (Reuters) - Oil and gas industry bosses pledged on Friday to curb gas flaring as they sought to boost their image in the climate change debate ahead of a United Nations summit later this year, but disagreed on putting a price on carbon emissions.
The leaders of 10 companies that produce 20 percent of the world's oil and gas recognised that current greenhouse gas levels were inconsistent with a goal of limiting global warming to 2 degrees Celsius over pre-industrial times, but stopped short of outlining goals to cut their own emissions.
The executives of eight companies held an unprecedented joint press conference in Paris, calling for an "effective" agreement at the U.N. summit in December, where negotiators from almost 200 nations will meet to try to forge a global climate change agreement.
While promising to collaborate on limiting gas flaring at refineries, they failed to find common ground on a mechanism for carbon pricing, which leaders of seven European companies adhered to earlier this year, saying it will encourage the private sector to use cleaner sources of energy and to develop new technologies such as carbon capture and storage (CCS). Continuación...