John Podesta becomes the new US climate envoy. The 75-year-old is a "combative advocate" for "courageous" action.
Biden has made the fight against global warming a central theme of his presidency. The issue is also likely to play an important role in the election campaign before the presidential election in November, which is likely to see another duel between Biden and Trump. John Kerry is giving up the post of US special envoy for climate protection to get involved in Biden's campaign for re-election.