The new US climate envoy says time is running out for the world to address the climate crisis.
Read moreJohn Kerry
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Video caption: John Kerry: 'Glasgow the last best chance the world has to avoid climate crisis' John Kerry says three years were wasted under the Trump administration to act on the environment.
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Video caption: John Kerry: 'The stakes couldn't be higher' John Kerry, the Biden administration's Climate tsar, outlined a series of executive actions to curb climate change.
By Matt McGrath
Environment correspondent
By Stephen Walker
BBC News NI Political Correspondent
By Stephen Walker
BBC News NI Political Correspondent
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Video caption: When handshakes go wrong... Politicians may have their hands on the levers of power, but can they control them?
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Video caption: Paris negotiator John Kerry: 'Grotesque abdication of leadership' Former US Secretary of State John Kerry tells the BBC's Katty Kay withdrawal from the Paris climate accord was a "grotesque abdication" of leadership.
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Video caption: Learn Russian? Which languages Americans study and why John Kerry joked about Americans learning Russian, but global politics do influence languages studied.
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Video caption: John Kerry's tips to get on in government The ex-secretary of state made some wisecracks as he gave a speech at Harvard.
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Video caption: John Kerry surprised by Theresa May criticism on Israel Katty Kay presses outgoing Secretary of State John Kerry on his Israel speech, the Russia hacking allegations, and other topics from his tenure.
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Video caption: John Kerry warns Israel over peace deal with Palestinians US Secretary of State John Kerry warns Israel that a two-state solution is in "serious jeopardy".
