BBC News Science Editor turned Independent Consultant | Storytelling Expert 21m OK, not the best start to the day, but where does it leave us? Trump will take the US out of the Paris Agreement, again. Last time he did it there was a lot of brave talk - we'll work around America, cities will take the lead, companies will act anyway. And a lot of that did prove to be true. But there's no escaping the fact that without the world's largest economy, the world's only climate process is weaker.