WARSAW, Poland — After another U.N. climate conference gave only modest results, European Climate Commissioner Connie Hedegaard says the process needs to provide a “substantial answer” to global warming in two years to remain relevant.

Even if it succeeds, it’s worth reconsidering whether the international confabs need to be held every year, and whether the scope of each session should be narrower, Hedegaard told The Associated Press on Sunday.

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