US President-elect Donald Trump said on Tuesday he thinks there is some connection between climate change and human activity and 'clean air is vitally important,' a New York Times reporter said in a tweet. Trump, who met Times reporters and editors in New York, 'says he is keeping 'an open mind'' on the issue, the Times' reporter wrote on Twitter. Trump has previously called man-made global warming a hoax. 'I think there is some connectivity' between humans and climate change, Trump said in the Times interview.