Barnaby Joyce refuses to say if Australia should support Paris climate deal if US quits

Deputy PM departs from official Coalition line, saying 'to speculate on what Donald Trump might do is insanity' and I'm going to 'see what happens'

Barnaby Joyce has declined to say whether Australia should remain within the Paris climate accord if the United States pulls out, in a departure from the official government line that Australia will stay the course.

While Australia's energy and employment ministers have said this week Australia will honour its Paris commitments regardless of what Donald Trump decides, the Nationals leader and deputy prime minister was more guarded on Thursday.