Sadiq Khan uses Rio speech to rekindle war of words with 'climate wrecker' Donald Trump

Sir Sadiq Khan has criticised Donald Trump in a set-piece opening speech at a Brazil climate change conference - the London mayor’s fifth foreign trip of the year.He told the “biggest-ever gathering of mayors” that the US president was one of the climate “wreckers” they needed to fight back against to reduce the threat of global warming.In remarks that were not released in advance, Sir Sadiq essentially reactivated his long-running war of words with President Trump. Speaking in the “magical city” of Rio on Monday morning, he said: “Famous among the wreckers is the President of the United States of America - someone who stood up at the United Nations, only a matter of weeks ago, and called the climate crisis a scam.”He spoke of his own policies, saying the ultra-low emission zone (Ulez) “has delivered massive environmental benefits” - as he promised more solar panels on school buildings in the coming year.But his own record at reducing emissions came in for criticism, with one of his Labour allies at City Hall warning that the capital was set to miss his 2030 “net zero” target.