U.N. climate summit heads into extra time as negotiators work to strike deal

Countries continue to debate the rules for carbon markets; financial support for vulnerable nations; and provisions calling for the phasing out of coal and fossil-fuel subsidies

Speaking at a gathering of delegates, U.S. climate envoy John F. Kerry called government policies subsidizing oil, gas and coal production “a definition of insanity,” even as he defended draft language that whittled down the effort to curb the burning of fossil fuels.

Activists are continuing to demonstrate Friday. Speakers from civil society groups and the climate justice movement held a “People’s Plenary” in the conference venue and are rallying outdoors.