Antitrust questions arise when insurers come together and discuss which risks they will underwrite and which they won't since antitrust authorities normally say competitors shouldn't talk to each other about their policies, said Maurits Dolmans, a partner at Cleary Gottlieb Steen & Hamilton LLP. (Credit: Onur/Adobe Stock) Antitrust questions arise when insurers come together and discuss which risks they will underwrite and which they won't since antitrust authorities normally say competitors shouldn't talk to each other about their policies, said Maurits Dolmans, a partner at Cleary Gottlieb Steen & Hamilton LLP. (Credit: Onur/Adobe Stock)

(Bloomberg) — A group of the world's biggest insurers and reinsurers jointly pledging to eliminate greenhouse gas emissions from their underwriting activities have run into an unexpected opponent of their planet-friendly mission: competition law.

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