US President Joe Biden campaigns with US climate envoy John Kerry on December 6, 2019, in Cedar Rapids, Iowa. — AFP John Kerry, the United States climate envoy who has been instrumental in the Biden administration's efforts to combat climate change, is set to step down from his...source https://www.thenews.com.pk/latest/1147765-why-is-john-kerry-stepping-down-as-us-climate-envoy
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