Greta Thunberg: 'I wouldn't have wasted my time' speaking to Trump

• Swedish activist and president attended UN climate summit
• 'He's not listening to experts " why would he listen to me?'

Greta Thunberg has said she wouldn't have wasted her time talking to Donald Trump about climate change at the UN climate change summit in New York earlier this year - the same event she was pictured glaring at the one of the world's leading climate-change deniers.

Related: Vladimir Putin thanks Donald Trump for tip that foiled Russian terror plot